407402256 has 40 divisors (see below), whose sum is σ = 1107850720. Its totient is φ = 128653056.

The previous prime is 407402249. The next prime is 407402291. The reversal of 407402256 is 652204704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222445 + ... + 224268.

It is an arithmetic number, because the mean of its divisors is an integer number (27696268).

Almost surely, 2^407402256 is an apocalyptic number.

It is an amenable number.

407402256 is an abundant number, since it is smaller than the sum of its proper divisors (700448464).

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

407402256 is a wasteful number, since it uses less digits than its factorization.

407402256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446743 (or 446737 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 407402256 is about 20184.2080845398. The cubic root of 407402256 is about 741.3235723085.

The spelling of 407402256 in words is "four hundred seven million, four hundred two thousand, two hundred fifty-six".