630589320 has 64 divisors (see below), whose sum is σ = 2101968000. Its totient is φ = 168156864.

The previous prime is 630589319. The next prime is 630589331. The reversal of 630589320 is 23985036.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290860 + ... + 293019.

It is an arithmetic number, because the mean of its divisors is an integer number (32843250).

Almost surely, 2^630589320 is an apocalyptic number.

630589320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

630589320 is an abundant number, since it is smaller than the sum of its proper divisors (1471378680).

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

630589320 is a wasteful number, since it uses less digits than its factorization.

630589320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583899 (or 583889 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 630589320 is about 25111.5375873322. The cubic root of 630589320 is about 857.5291073483.

The spelling of 630589320 in words is "six hundred thirty million, five hundred eighty-nine thousand, three hundred twenty".