630164428 has 6 divisors (see below), whose sum is σ = 1102787756. Its totient is φ = 315082212.

The previous prime is 630164407. The next prime is 630164459. The reversal of 630164428 is 824461036.

It is a junction number, because it is equal to n+sod(n) for n = 630164393 and 630164402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78770550 + ... + 78770557.

Almost surely, 2^630164428 is an apocalyptic number.

It is an amenable number.

630164428 is a deficient number, since it is larger than the sum of its proper divisors (472623328).

630164428 is a wasteful number, since it uses less digits than its factorization.

630164428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157541111 (or 157541109 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 630164428 is about 25103.0760664903. The cubic root of 630164428 is about 857.3364626209.

The spelling of 630164428 in words is "six hundred thirty million, one hundred sixty-four thousand, four hundred twenty-eight".