635490732 has 12 divisors (see below), whose sum is σ = 1482811736. Its totient is φ = 211830240.

The previous prime is 635490707. The next prime is 635490733. The reversal of 635490732 is 237094536.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (635490733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26478769 + ... + 26478792.

Almost surely, 2^635490732 is an apocalyptic number.

It is an amenable number.

635490732 is an abundant number, since it is smaller than the sum of its proper divisors (847321004).

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

635490732 is a wasteful number, since it uses less digits than its factorization.

635490732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52957568 (or 52957566 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 635490732 is about 25208.9415089170. The cubic root of 635490732 is about 859.7451615579.

The spelling of 635490732 in words is "six hundred thirty-five million, four hundred ninety thousand, seven hundred thirty-two".