630044468 has 12 divisors (see below), whose sum is σ = 1102779300. Its totient is φ = 314964672.

The previous prime is 630044461. The next prime is 630044477. The reversal of 630044468 is 864440036.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 218684944 + 411359524 = 14788^2 + 20282^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630044461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18680 + ... + 40112.

It is an arithmetic number, because the mean of its divisors is an integer number (91898275).

Almost surely, 2^630044468 is an apocalyptic number.

It is an amenable number.

630044468 is a deficient number, since it is larger than the sum of its proper divisors (472734832).

630044468 is a wasteful number, since it uses less digits than its factorization.

630044468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28786 (or 28784 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 630044468 is about 25100.6866041549. The cubic root of 630044468 is about 857.2820574508.

The spelling of 630044468 in words is "six hundred thirty million, forty-four thousand, four hundred sixty-eight".