256650244 has 12 divisors (see below), whose sum is σ = 449259804. Its totient is φ = 128290304.

The previous prime is 256650211. The next prime is 256650257. The reversal of 256650244 is 442056652.

It can be written as a sum of positive squares in 2 ways, for example, as 146652100 + 109998144 = 12110^2 + 10488^2 .

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 15132 + ... + 27244.

It is an arithmetic number, because the mean of its divisors is an integer number (37438317).

Almost surely, 2^256650244 is an apocalyptic number.

It is an amenable number.

256650244 is a deficient number, since it is larger than the sum of its proper divisors (192609560).

256650244 is a wasteful number, since it uses less digits than its factorization.

256650244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17414 (or 17412 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 256650244 is about 16020.3072380026. The cubic root of 256650244 is about 635.4975693851.

The spelling of 256650244 in words is "two hundred fifty-six million, six hundred fifty thousand, two hundred forty-four".