256343204 has 48 divisors (see below), whose sum is σ = 513500400. Its totient is φ = 110923776.

The previous prime is 256343189. The next prime is 256343233. The reversal of 256343204 is 402343652.

It can be written as a sum of positive squares in 8 ways, for example, as 23104 + 256320100 = 152^2 + 16010^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361202 + ... + 361910.

It is an arithmetic number, because the mean of its divisors is an integer number (10697925).

Almost surely, 2^256343204 is an apocalyptic number.

It is an amenable number.

256343204 is an abundant number, since it is smaller than the sum of its proper divisors (257157196).

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

256343204 is a wasteful number, since it uses less digits than its factorization.

256343204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 256343204 is about 16010.7215327730. The cubic root of 256343204 is about 635.2440453239.

Adding to 256343204 its reverse (402343652), we get a palindrome (658686856).

It can be divided in two parts, 25634 and 3204, that multiplied together give a triangular number (82131336 = T₁₂₈₁₆).

The spelling of 256343204 in words is "two hundred fifty-six million, three hundred forty-three thousand, two hundred four".