630349256 has 32 divisors (see below), whose sum is σ = 1262534040. Its totient is φ = 294002688.

The previous prime is 630349243. The next prime is 630349261. The reversal of 630349256 is 652943036.

It can be written as a sum of positive squares in 4 ways, for example, as 519384100 + 110965156 = 22790^2 + 10534^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5141 + ... + 35876.

Almost surely, 2^630349256 is an apocalyptic number.

It is an amenable number.

630349256 is an abundant number, since it is smaller than the sum of its proper divisors (632184784).

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

630349256 is a wasteful number, since it uses less digits than its factorization.

630349256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41153 (or 41149 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 38.

The square root of 630349256 is about 25106.7571780985. The cubic root of 630349256 is about 857.4202737064.

The spelling of 630349256 in words is "six hundred thirty million, three hundred forty-nine thousand, two hundred fifty-six".