634872460 has 24 divisors (see below), whose sum is σ = 1403403120. Its totient is φ = 240583104.

The previous prime is 634872457. The next prime is 634872481. The reversal of 634872460 is 64278436.

It is a happy number.

634872460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 834979 + ... + 835738.

It is an arithmetic number, because the mean of its divisors is an integer number (58475130).

Almost surely, 2^634872460 is an apocalyptic number.

It is an amenable number.

634872460 is an abundant number, since it is smaller than the sum of its proper divisors (768530660).

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

634872460 is a wasteful number, since it uses less digits than its factorization.

634872460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670745 (or 1670743 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 634872460 is about 25196.6755743689. The cubic root of 634872460 is about 859.4662543493.

The spelling of 634872460 in words is "six hundred thirty-four million, eight hundred seventy-two thousand, four hundred sixty".