630631036 has 24 divisors (see below), whose sum is σ = 1273055616. Its totient is φ = 267743280.

The previous prime is 630631021. The next prime is 630631037. The reversal of 630631036 is 630136036.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 630630995 and 630631013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630631037) 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, 102250 + ... + 108241.

It is an arithmetic number, because the mean of its divisors is an integer number (53043984).

Almost surely, 2^630631036 is an apocalyptic number.

It is an amenable number.

630631036 is an abundant number, since it is smaller than the sum of its proper divisors (642424580).

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

630631036 is a wasteful number, since it uses less digits than its factorization.

630631036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210609 (or 210607 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 630631036 is about 25112.3681878074. The cubic root of 630631036 is about 857.5480165889.

The spelling of 630631036 in words is "six hundred thirty million, six hundred thirty-one thousand, thirty-six".