630151720 has 64 divisors (see below), whose sum is σ = 1628164800. Its totient is φ = 217082880.

The previous prime is 630151703. The next prime is 630151741. The reversal of 630151720 is 27151036.

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, 29329 + ... + 46048.

It is an arithmetic number, because the mean of its divisors is an integer number (25440075).

Almost surely, 2^630151720 is an apocalyptic number.

It is an amenable number.

630151720 is an abundant number, since it is smaller than the sum of its proper divisors (998013080).

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

630151720 is a wasteful number, since it uses less digits than its factorization.

630151720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75418 (or 75414 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 630151720 is about 25102.8229488239. The cubic root of 630151720 is about 857.3306995193.

The spelling of 630151720 in words is "six hundred thirty million, one hundred fifty-one thousand, seven hundred twenty".