630167730 has 64 divisors (see below), whose sum is σ = 1606635648. Its totient is φ = 157639680.

The previous prime is 630167729. The next prime is 630167743. The reversal of 630167730 is 37761036.

630167730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×630167730² = 794222735866705800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 630167691 and 630167700.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166944 + ... + 170676.

It is an arithmetic number, because the mean of its divisors is an integer number (25103682).

Almost surely, 2^630167730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630167730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803317824).

630167730 is an abundant number, since it is smaller than the sum of its proper divisors (976467918).

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

630167730 is a wasteful number, since it uses less digits than its factorization.

630167730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091.

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 630167730 is about 25103.1418352365. The cubic root of 630167730 is about 857.3379600714.

The spelling of 630167730 in words is "six hundred thirty million, one hundred sixty-seven thousand, seven hundred thirty".