630305232 has 20 divisors (see below), whose sum is σ = 1628288640. Its totient is φ = 210101728.

The previous prime is 630305219. The next prime is 630305281. The reversal of 630305232 is 232503036.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6565632 + ... + 6565727.

It is an arithmetic number, because the mean of its divisors is an integer number (81414432).

Almost surely, 2^630305232 is an apocalyptic number.

It is an amenable number.

630305232 is an abundant number, since it is smaller than the sum of its proper divisors (997983408).

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

630305232 is a wasteful number, since it uses less digits than its factorization.

630305232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13131370 (or 13131364 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 630305232 is about 25105.8804267048. The cubic root of 630305232 is about 857.4003123127.

Adding to 630305232 its reverse (232503036), we get a palindrome (862808268).

The spelling of 630305232 in words is "six hundred thirty million, three hundred five thousand, two hundred thirty-two".