4,038,291

3² × 37 × 67 × 181

4,038,291 has digital root 9. The neighboring primes are 4038289 and 4038301; its proper-divisor sum differs from the starting integer by -1,962,838.

Prime Factor Structure

Factorization String 3^2 × 37 × 67 × 181

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 24

Divisor Sum (σ) 6,113,744

Proper Divisor Sum 2,075,453

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #4038289 ← → #4038301

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

4,038,291 12,114,874 6,057,437 18,172,312 9,086,156 4,543,078 2,271,539 6,814,618 3,407,309 10,221,928 5,110,964 2,555,482 1,277,741 3,833,224 1,916,612 958,306 479,153 1,437,460 718,730 359,365 1,078,096 539,048 269,524 134,762 67,381 202,144 101,072 50,536 25,268 12,634 6,317 18,952 9,476 4,738 2,369 7,108 3,554 1,777 5,332 2,666 1,333 4,000 2,000 1,000 500 250 125 376 188 94 47 142 71 214 107 322 161 484 242 121