630172932 has 24 divisors (see below), whose sum is σ = 1556898336. Its totient is φ = 197701248.

The previous prime is 630172931. The next prime is 630172951. The reversal of 630172932 is 239271036.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 630172893 and 630172902.

It is not an unprimeable number, because it can be changed into a prime (630172931) 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, 1544338 + ... + 1544745.

It is an arithmetic number, because the mean of its divisors is an integer number (64870764).

Almost surely, 2^630172932 is an apocalyptic number.

It is an amenable number.

630172932 is an abundant number, since it is smaller than the sum of its proper divisors (926725404).

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

630172932 is a wasteful number, since it uses less digits than its factorization.

630172932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089107 (or 3089105 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 630172932 is about 25103.2454475512. The cubic root of 630172932 is about 857.3403191575.

The spelling of 630172932 in words is "six hundred thirty million, one hundred seventy-two thousand, nine hundred thirty-two".