630361448 has 16 divisors (see below), whose sum is σ = 1182210180. Its totient is φ = 315105408.

The previous prime is 630361441. The next prime is 630361451. The reversal of 630361448 is 844163036.

It is a Cunningham number, because it is equal to 25107²-1.

It can be written as a sum of positive squares in 2 ways, for example, as 379392484 + 250968964 = 19478^2 + 15842^2 .

It is not an unprimeable number, because it can be changed into a prime (630361441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43940 + ... + 56492.

Almost surely, 2^630361448 is an apocalyptic number.

It is an amenable number.

630361448 is a deficient number, since it is larger than the sum of its proper divisors (551848732).

630361448 is a wasteful number, since it uses less digits than its factorization.

630361448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18836 (or 18832 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 630361448 is about 25106.9999800852. Note that the first 4 decimals coincide. The cubic root of 630361448 is about 857.4258016474.

The spelling of 630361448 in words is "six hundred thirty million, three hundred sixty-one thousand, four hundred forty-eight".