485640688 has 40 divisors (see below), whose sum is σ = 1040711168. Its totient is φ = 218080512.

The previous prime is 485640679. The next prime is 485640691. The reversal of 485640688 is 886046584.

It is a super-2 number, since 2×485640688² = 471693755682226688, 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 7 ways as a sum of consecutive naturals, for example, 23856 + ... + 39247.

Almost surely, 2^485640688 is an apocalyptic number.

It is an amenable number.

485640688 is an abundant number, since it is smaller than the sum of its proper divisors (555070480).

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

485640688 is a wasteful number, since it uses less digits than its factorization.

485640688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63161 (or 63155 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The square root of 485640688 is about 22037.2568165822. The cubic root of 485640688 is about 786.0286125029.

The spelling of 485640688 in words is "four hundred eighty-five million, six hundred forty thousand, six hundred eighty-eight".