256724476 has 12 divisors (see below), whose sum is σ = 449380008. Its totient is φ = 128330192.

The previous prime is 256724473. The next prime is 256724477. The reversal of 256724476 is 674427652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256724471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27570 + ... + 35686.

It is an arithmetic number, because the mean of its divisors is an integer number (37448334).

Almost surely, 2^256724476 is an apocalyptic number.

It is an amenable number.

256724476 is a deficient number, since it is larger than the sum of its proper divisors (192655532).

256724476 is a wasteful number, since it uses less digits than its factorization.

256724476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16028 (or 16026 counting only the distinct ones).

The product of its digits is 564480, while the sum is 43.

The square root of 256724476 is about 16022.6238800017. The cubic root of 256724476 is about 635.5588326662.

The spelling of 256724476 in words is "two hundred fifty-six million, seven hundred twenty-four thousand, four hundred seventy-six".