40,436

2² × 11 × 919

40,436 has digital root 8. The neighboring primes are 40433 and 40459; its proper-divisor sum differs from the starting integer by -3,592.

Prime Factor Structure

Factorization String 2^2 × 11 × 919

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 12

Divisor Sum (σ) 77,280

Proper Divisor Sum 36,844

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #40433 ← → #40459

1 2 4 11 22 44 919 1,838 3,676 10,109 20,218 40,436

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

40,436 20,218 10,109 30,328 15,164 7,582 3,791 11,374 5,687 17,062 8,531 25,594 12,797 38,392 19,196 9,598 4,799 14,398 7,199 21,598 10,799 32,398 16,199 48,598 24,299 72,898 36,449 109,348 54,674 27,337 82,012 41,006 20,503 61,510 30,755 92,266 46,133 138,400 69,200 34,600 17,300 8,650 4,325 12,976 6,488 3,244 1,622 811 2,434 1,217 3,652 1,826 913 2,740 1,370 685 2,056 1,028 514 257

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