256276260 has 36 divisors (see below), whose sum is σ = 777371868. Its totient is φ = 68340288.

The previous prime is 256276247. The next prime is 256276333. The reversal of 256276260 is 62672652.

256276260 is a `hidden beast` number, since 2 + 5 + 6 + 27 + 626 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 180794916 + 75481344 = 13446^2 + 8688^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 711699 + ... + 712058.

It is an arithmetic number, because the mean of its divisors is an integer number (21593663).

Almost surely, 2^256276260 is an apocalyptic number.

256276260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256276260 is an abundant number, since it is smaller than the sum of its proper divisors (521095608).

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

256276260 is a wasteful number, since it uses less digits than its factorization.

256276260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423772 (or 1423767 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 256276260 is about 16008.6307971669. The cubic root of 256276260 is about 635.1887425383.

The spelling of 256276260 in words is "two hundred fifty-six million, two hundred seventy-six thousand, two hundred sixty".