256650444 has 30 divisors (see below), whose sum is σ = 670935804. Its totient is φ = 85550040.

The previous prime is 256650431. The next prime is 256650467. The reversal of 256650444 is 444056652.

256650444 is a `hidden beast` number, since 2 + 566 + 50 + 4 + 44 = 666.

256650444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 256650399 and 256650408.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 395742 + ... + 396389.

Almost surely, 2^256650444 is an apocalyptic number.

It is an amenable number.

256650444 is an abundant number, since it is smaller than the sum of its proper divisors (414285360).

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

256650444 is a wasteful number, since it uses less digits than its factorization.

256650444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792147 (or 792136 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 256650444 is about 16020.3134800790. The cubic root of 256650444 is about 635.4977344599.

The spelling of 256650444 in words is "two hundred fifty-six million, six hundred fifty thousand, four hundred forty-four".