630982656 has 96 divisors (see below), whose sum is σ = 1869285600. Its totient is φ = 210309120.

The previous prime is 630982637. The next prime is 630982657. The reversal of 630982656 is 656289036.

It is a happy number.

630982656 is a `hidden beast` number, since 630 + 9 + 8 + 2 + 6 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×630982656² = 796278224345628672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (630982657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49591 + ... + 61001.

It is an arithmetic number, because the mean of its divisors is an integer number (19471725).

Almost surely, 2^630982656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630982656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (934642800).

630982656 is an abundant number, since it is smaller than the sum of its proper divisors (1238302944).

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

630982656 is a wasteful number, since it uses less digits than its factorization.

630982656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11442 (or 11416 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 630982656 is about 25119.3681449196. The cubic root of 630982656 is about 857.7073675629.

The spelling of 630982656 in words is "six hundred thirty million, nine hundred eighty-two thousand, six hundred fifty-six".