635480668 has 12 divisors (see below), whose sum is σ = 1115888760. Its totient is φ = 316655312.

The previous prime is 635480641. The next prime is 635480701. The reversal of 635480668 is 866084536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269938 + ... + 272281.

It is an arithmetic number, because the mean of its divisors is an integer number (92990730).

Almost surely, 2^635480668 is an apocalyptic number.

It is an amenable number.

635480668 is a deficient number, since it is larger than the sum of its proper divisors (480408092).

635480668 is a wasteful number, since it uses less digits than its factorization.

635480668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542516 (or 542514 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The square root of 635480668 is about 25208.7418964136. The cubic root of 635480668 is about 859.7406230595.

The spelling of 635480668 in words is "six hundred thirty-five million, four hundred eighty thousand, six hundred sixty-eight".