630606320 has 40 divisors (see below), whose sum is σ = 1471218336. Its totient is φ = 251372288.

The previous prime is 630606299. The next prime is 630606323. The reversal of 630606320 is 23606036.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 630606320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630606323) 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, 9989 + ... + 36891.

Almost surely, 2^630606320 is an apocalyptic number.

It is an amenable number.

630606320 is an abundant number, since it is smaller than the sum of its proper divisors (840612016).

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

630606320 is a wasteful number, since it uses less digits than its factorization.

630606320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27209 (or 27203 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 630606320 is about 25111.8760748774. The cubic root of 630606320 is about 857.5368132954.

The spelling of 630606320 in words is "six hundred thirty million, six hundred six thousand, three hundred twenty".