630427968 has 112 divisors (see below), whose sum is σ = 1867570560. Its totient is φ = 208530432.

The previous prime is 630427943. The next prime is 630427969. The reversal of 630427968 is 869724036.

630427968 is a `hidden beast` number, since 630 + 4 + 2 + 7 + 9 + 6 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630427969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235405 + ... + 238067.

Almost surely, 2^630427968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630427968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (933785280).

630427968 is an abundant number, since it is smaller than the sum of its proper divisors (1237142592).

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

630427968 is a wasteful number, since it uses less digits than its factorization.

630427968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821 (or 2805 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 630427968 is about 25108.3246752944. The cubic root of 630427968 is about 857.4559610416.

The spelling of 630427968 in words is "six hundred thirty million, four hundred twenty-seven thousand, nine hundred sixty-eight".