630788578 has 32 divisors (see below), whose sum is σ = 1091543040. Its totient is φ = 267804240.

The previous prime is 630788507. The next prime is 630788579. The reversal of 630788578 is 875887036.

It is not an unprimeable number, because it can be changed into a prime (630788579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1120125 + ... + 1120687.

It is an arithmetic number, because the mean of its divisors is an integer number (34110720).

Almost surely, 2^630788578 is an apocalyptic number.

630788578 is a deficient number, since it is larger than the sum of its proper divisors (460754462).

630788578 is a wasteful number, since it uses less digits than its factorization.

630788578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The square root of 630788578 is about 25115.5047331325. The cubic root of 630788578 is about 857.6194205073.

The spelling of 630788578 in words is "six hundred thirty million, seven hundred eighty-eight thousand, five hundred seventy-eight".