256151376 has 160 divisors (see below), whose sum is σ = 838696320. Its totient is φ = 74151936.

The previous prime is 256151351. The next prime is 256151377. The reversal of 256151376 is 673151652.

256151376 is a `hidden beast` number, since 2 + 5 + 615 + 1 + 37 + 6 = 666.

It is a super-2 number, since 2×256151376² = 131227054853386752, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 256151376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256151377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94131 + ... + 96813.

It is an arithmetic number, because the mean of its divisors is an integer number (5241852).

Almost surely, 2^256151376 is an apocalyptic number.

256151376 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256151376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419348160).

256151376 is an abundant number, since it is smaller than the sum of its proper divisors (582544944).

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

256151376 is a wasteful number, since it uses less digits than its factorization.

256151376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730 (or 2718 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 256151376 is about 16004.7298009057. The cubic root of 256151376 is about 635.0855494717.

The spelling of 256151376 in words is "two hundred fifty-six million, one hundred fifty-one thousand, three hundred seventy-six".