256376144 has 10 divisors (see below), whose sum is σ = 496728810. Its totient is φ = 128188064.

The previous prime is 256376137. The next prime is 256376149. The reversal of 256376144 is 441673652.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 137827600 + 118548544 = 11740^2 + 10888^2 .

It is a junction number, because it is equal to n+sod(n) for n = 256376098 and 256376107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256376149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8011739 + ... + 8011770.

It is an arithmetic number, because the mean of its divisors is an integer number (49672881).

Almost surely, 2^256376144 is an apocalyptic number.

It is an amenable number.

256376144 is a deficient number, since it is larger than the sum of its proper divisors (240352666).

256376144 is a wasteful number, since it uses less digits than its factorization.

256376144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16023517 (or 16023511 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 256376144 is about 16011.7501854107. The cubic root of 256376144 is about 635.2712536945.

The spelling of 256376144 in words is "two hundred fifty-six million, three hundred seventy-six thousand, one hundred forty-four".