490609764 has 48 divisors (see below), whose sum is σ = 1295965440. Its totient is φ = 160449120.

The previous prime is 490609753. The next prime is 490609793. The reversal of 490609764 is 467906094.

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, 37132 + ... + 48579.

It is an arithmetic number, because the mean of its divisors is an integer number (26999280).

Almost surely, 2^490609764 is an apocalyptic number.

It is an amenable number.

490609764 is an abundant number, since it is smaller than the sum of its proper divisors (805355676).

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

490609764 is a wasteful number, since it uses less digits than its factorization.

490609764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85777 (or 85769 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 490609764 is about 22149.7125037776. The cubic root of 490609764 is about 788.7004023789.

The spelling of 490609764 in words is "four hundred ninety million, six hundred nine thousand, seven hundred sixty-four".