630387960 has 64 divisors (see below), whose sum is σ = 1896739200. Its totient is φ = 167607936.

The previous prime is 630387959. The next prime is 630387973. The reversal of 630387960 is 69783036.

It is a super-2 number, since 2×630387960² = 794777960225923200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34071 + ... + 49209.

It is an arithmetic number, because the mean of its divisors is an integer number (29636550).

Almost surely, 2^630387960 is an apocalyptic number.

630387960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630387960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (948369600).

630387960 is an abundant number, since it is smaller than the sum of its proper divisors (1266351240).

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

630387960 is a wasteful number, since it uses less digits than its factorization.

630387960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15500 (or 15496 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 630387960 is about 25107.5279547788. The cubic root of 630387960 is about 857.4378221341.

The spelling of 630387960 in words is "six hundred thirty million, three hundred eighty-seven thousand, nine hundred sixty".