256072710 has 64 divisors (see below), whose sum is σ = 637507584. Its totient is φ = 65760000.

The previous prime is 256072657. The next prime is 256072711. The reversal of 256072710 is 17270652.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256072711) 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, 232882 + ... + 233978.

It is an arithmetic number, because the mean of its divisors is an integer number (9961056).

Almost surely, 2^256072710 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256072710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318753792).

256072710 is an abundant number, since it is smaller than the sum of its proper divisors (381434874).

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

256072710 is a wasteful number, since it uses less digits than its factorization.

256072710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 256072710 is about 16002.2720261843. The cubic root of 256072710 is about 635.0205296440.

The spelling of 256072710 in words is "two hundred fifty-six million, seventy-two thousand, seven hundred ten".