630157506 has 16 divisors (see below), whose sum is σ = 1374889248. Its totient is φ = 190956800.

The previous prime is 630157499. The next prime is 630157523. The reversal of 630157506 is 605751036.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4773855 + ... + 4773986.

It is an arithmetic number, because the mean of its divisors is an integer number (85930578).

Almost surely, 2^630157506 is an apocalyptic number.

630157506 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

630157506 is an abundant number, since it is smaller than the sum of its proper divisors (744731742).

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

630157506 is a wasteful number, since it uses less digits than its factorization.

630157506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9547857.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 630157506 is about 25102.9381945620. The cubic root of 630157506 is about 857.3333234907. Note that the first 4 decimals are identical.

The spelling of 630157506 in words is "six hundred thirty million, one hundred fifty-seven thousand, five hundred six".