326400856 has 16 divisors (see below), whose sum is σ = 616470840. Its totient is φ = 162008640.

The previous prime is 326400847. The next prime is 326400857. The reversal of 326400856 is 658004623.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326400857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147810 + ... + 150001.

Almost surely, 2^326400856 is an apocalyptic number.

It is an amenable number.

326400856 is a deficient number, since it is larger than the sum of its proper divisors (290069984).

326400856 is a wasteful number, since it uses less digits than its factorization.

326400856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297954 (or 297950 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 326400856 is about 18066.5673552006. The cubic root of 326400856 is about 688.5208501827.

The spelling of 326400856 in words is "three hundred twenty-six million, four hundred thousand, eight hundred fifty-six".