256364 has 6 divisors (see below), whose sum is σ = 448644. Its totient is φ = 128180.

The previous prime is 256363. The next prime is 256369. The reversal of 256364 is 463652.

256364 = T₁₃₄ + T₁₃₅ + ... + T₁₅₇.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 256364.

It is not an unprimeable number, because it can be changed into a prime (256363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32042 + ... + 32049.

It is an arithmetic number, because the mean of its divisors is an integer number (74774).

2²⁵⁶³⁶⁴ is an apocalyptic number.

It is an amenable number.

256364 is a deficient number, since it is larger than the sum of its proper divisors (192280).

256364 is a wasteful number, since it uses less digits than its factorization.

256364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64095 (or 64093 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 256364 is about 506.3240069363. The cubic root of 256364 is about 63.5261223047.

The spelling of 256364 in words is "two hundred fifty-six thousand, three hundred sixty-four".