256604376 has 192 divisors, whose sum is σ = 797817600. Its totient is φ = 68420352.

The previous prime is 256604357. The next prime is 256604461. The reversal of 256604376 is 673406652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1433455 + ... + 1433633.

It is an arithmetic number, because the mean of its divisors is an integer number (4155300).

Almost surely, 2^256604376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256604376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398908800).

256604376 is an abundant number, since it is smaller than the sum of its proper divisors (541213224).

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

256604376 is a wasteful number, since it uses less digits than its factorization.

256604376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 256604376 is about 16018.8756159726. The cubic root of 256604376 is about 635.4597088598.

The spelling of 256604376 in words is "two hundred fifty-six million, six hundred four thousand, three hundred seventy-six".