630732 has 12 divisors (see below), whose sum is σ = 1471736. Its totient is φ = 210240.

The previous prime is 630719. The next prime is 630733. The reversal of 630732 is 237036.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 630699 and 630708.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 630732.

It is not an unprimeable number, because it can be changed into a prime (630733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26269 + ... + 26292.

2⁶³⁰⁷³² is an apocalyptic number.

It is an amenable number.

630732 is an abundant number, since it is smaller than the sum of its proper divisors (841004).

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

630732 is a wasteful number, since it uses less digits than its factorization.

630732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52568 (or 52566 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 630732 is about 794.1863761108. The cubic root of 630732 is about 85.7593778613.

Adding to 630732 its reverse (237036), we get a palindrome (867768).

The spelling of 630732 in words is "six hundred thirty thousand, seven hundred thirty-two".