256004344 has 16 divisors (see below), whose sum is σ = 496560600. Its totient is φ = 123588192.

The previous prime is 256004339. The next prime is 256004407. The reversal of 256004344 is 443400652.

It is a congruent number.

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, 551502 + ... + 551965.

Almost surely, 2^256004344 is an apocalyptic number.

It is an amenable number.

256004344 is a deficient number, since it is larger than the sum of its proper divisors (240556256).

256004344 is a wasteful number, since it uses less digits than its factorization.

256004344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103502 (or 1103498 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 256004344 is about 16000.1357494241. The cubic root of 256004344 is about 634.9640122618.

Adding to 256004344 its reverse (443400652), we get a palindrome (699404996).

The spelling of 256004344 in words is "two hundred fifty-six million, four thousand, three hundred forty-four".