256463464 has 16 divisors (see below), whose sum is σ = 481043520. Its totient is φ = 128185200.

The previous prime is 256463437. The next prime is 256463489. The reversal of 256463464 is 464364652.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 32289 + ... + 39439.

It is an arithmetic number, because the mean of its divisors is an integer number (30065220).

Almost surely, 2^256463464 is an apocalyptic number.

It is an amenable number.

256463464 is a deficient number, since it is larger than the sum of its proper divisors (224580056).

256463464 is a wasteful number, since it uses less digits than its factorization.

256463464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11640 (or 11636 counting only the distinct ones).

The product of its digits is 414720, while the sum is 40.

The square root of 256463464 is about 16014.4767007854. The cubic root of 256463464 is about 635.3433685546.

The spelling of 256463464 in words is "two hundred fifty-six million, four hundred sixty-three thousand, four hundred sixty-four".