402256236 has 24 divisors (see below), whose sum is σ = 940040640. Its totient is φ = 133879312.

The previous prime is 402256219. The next prime is 402256241. The reversal of 402256236 is 632652204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17526 + ... + 33341.

It is an arithmetic number, because the mean of its divisors is an integer number (39168360).

Almost surely, 2^402256236 is an apocalyptic number.

It is an amenable number.

402256236 is an abundant number, since it is smaller than the sum of its proper divisors (537784404).

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

402256236 is a wasteful number, since it uses less digits than its factorization.

402256236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51533 (or 51531 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 402256236 is about 20056.3265829015. The cubic root of 402256236 is about 738.1890438955.

The spelling of 402256236 in words is "four hundred two million, two hundred fifty-six thousand, two hundred thirty-six".