402653136 has 40 divisors (see below), whose sum is σ = 1062324864. Its totient is φ = 131361280.

The previous prime is 402653117. The next prime is 402653171. The reversal of 402653136 is 631356204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86985 + ... + 91496.

Almost surely, 2^402653136 is an apocalyptic number.

It is an amenable number.

402653136 is an abundant number, since it is smaller than the sum of its proper divisors (659671728).

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

402653136 is a wasteful number, since it uses less digits than its factorization.

402653136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178539 (or 178533 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 402653136 is about 20066.2187768398. The cubic root of 402653136 is about 738.4317506547.

The spelling of 402653136 in words is "four hundred two million, six hundred fifty-three thousand, one hundred thirty-six".