402791336 has 64 divisors (see below), whose sum is σ = 850953600. Its totient is φ = 177610752.

The previous prime is 402791327. The next prime is 402791383. The reversal of 402791336 is 633197204.

It is a junction number, because it is equal to n+sod(n) for n = 402791296 and 402791305.

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, 249845 + ... + 251451.

It is an arithmetic number, because the mean of its divisors is an integer number (13296150).

Almost surely, 2^402791336 is an apocalyptic number.

It is an amenable number.

402791336 is an abundant number, since it is smaller than the sum of its proper divisors (448162264).

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

402791336 is a wasteful number, since it uses less digits than its factorization.

402791336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746 (or 1742 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 402791336 is about 20069.6620798657. The cubic root of 402791336 is about 738.5162233564.

The spelling of 402791336 in words is "four hundred two million, seven hundred ninety-one thousand, three hundred thirty-six".