630030044 has 36 divisors (see below), whose sum is σ = 1350072360. Its totient is φ = 255800160.

The previous prime is 630030041. The next prime is 630030097. The reversal of 630030044 is 440030036.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 630029998 and 630030025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630030041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80867 + ... + 88314.

It is an arithmetic number, because the mean of its divisors is an integer number (37502010).

Almost surely, 2^630030044 is an apocalyptic number.

It is an amenable number.

630030044 is an abundant number, since it is smaller than the sum of its proper divisors (720042316).

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

630030044 is a wasteful number, since it uses less digits than its factorization.

630030044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169218 (or 169209 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 630030044 is about 25100.3992796927. The cubic root of 630030044 is about 857.2755153037.

The spelling of 630030044 in words is "six hundred thirty million, thirty thousand, forty-four".