256727412 has 72 divisors (see below), whose sum is σ = 659952384. Its totient is φ = 84139776.

The previous prime is 256727371. The next prime is 256727417. The reversal of 256727412 is 214727652.

It is a happy number.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256727417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 907023 + ... + 907305.

Almost surely, 2^256727412 is an apocalyptic number.

It is an amenable number.

256727412 is an abundant number, since it is smaller than the sum of its proper divisors (403224972).

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

256727412 is a wasteful number, since it uses less digits than its factorization.

256727412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 624 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 256727412 is about 16022.7155001891. The cubic root of 256727412 is about 635.5612554889.

256727412 divided by its sum of digits (36) gives a palindrome (7131317).

The spelling of 256727412 in words is "two hundred fifty-six million, seven hundred twenty-seven thousand, four hundred twelve".