391274496 has 224 divisors, whose sum is σ = 1218895200. Its totient is φ = 123863040.

The previous prime is 391274479. The next prime is 391274531. The reversal of 391274496 is 694472193.

It is a happy number.

391274496 is a `hidden beast` number, since 3 + 91 + 2 + 74 + 496 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6414306 + ... + 6414366.

Almost surely, 2^391274496 is an apocalyptic number.

391274496 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 391274496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609447600).

391274496 is an abundant number, since it is smaller than the sum of its proper divisors (827620704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

391274496 is an equidigital number, since it uses as much as digits as its factorization.

391274496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 95 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 391274496 is about 19780.6596452191. The cubic root of 391274496 is about 731.4093596144.

The spelling of 391274496 in words is "three hundred ninety-one million, two hundred seventy-four thousand, four hundred ninety-six".