630338454 has 24 divisors (see below), whose sum is σ = 1366273272. Its totient is φ = 210029760.

The previous prime is 630338453. The next prime is 630338491. The reversal of 630338454 is 454833036.

It is a super-2 number, since 2×630338454² = 794653133182220232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630338453) 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, 54702 + ... + 65214.

It is an arithmetic number, because the mean of its divisors is an integer number (56928053).

Almost surely, 2^630338454 is an apocalyptic number.

630338454 is an abundant number, since it is smaller than the sum of its proper divisors (735934818).

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

630338454 is a wasteful number, since it uses less digits than its factorization.

630338454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13852 (or 13849 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 630338454 is about 25106.5420558069. The cubic root of 630338454 is about 857.4153759418.

The spelling of 630338454 in words is "six hundred thirty million, three hundred thirty-eight thousand, four hundred fifty-four".