630040168 has 16 divisors (see below), whose sum is σ = 1196280000. Its totient is φ = 311032176.

The previous prime is 630040163. The next prime is 630040183. The reversal of 630040168 is 861040036.

It is a super-2 number, since 2×630040168² = 793901226586936448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (630040163) 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, 497818 + ... + 499081.

It is an arithmetic number, because the mean of its divisors is an integer number (74767500).

Almost surely, 2^630040168 is an apocalyptic number.

It is an amenable number.

630040168 is a deficient number, since it is larger than the sum of its proper divisors (566239832).

630040168 is a wasteful number, since it uses less digits than its factorization.

630040168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996984 (or 996980 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 630040168 is about 25100.6009489813. The cubic root of 630040168 is about 857.2801071539.

The spelling of 630040168 in words is "six hundred thirty million, forty thousand, one hundred sixty-eight".