630564492 has 24 divisors (see below), whose sum is σ = 1476118336. Its totient is φ = 209502288.

The previous prime is 630564463. The next prime is 630564497. The reversal of 630564492 is 294465036.

It is a super-2 number, since 2×630564492² = 795223157142436128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 630564492.

It is not an unprimeable number, because it can be changed into a prime (630564497) 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, 81898 + ... + 89265.

Almost surely, 2^630564492 is an apocalyptic number.

It is an amenable number.

630564492 is an abundant number, since it is smaller than the sum of its proper divisors (845553844).

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

630564492 is a wasteful number, since it uses less digits than its factorization.

630564492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171477 (or 171475 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 630564492 is about 25111.0432280302. The cubic root of 630564492 is about 857.5178527904.

The spelling of 630564492 in words is "six hundred thirty million, five hundred sixty-four thousand, four hundred ninety-two".