634809412 has 12 divisors (see below), whose sum is σ = 1115142336. Its totient is φ = 316197320.

The previous prime is 634809377. The next prime is 634809421. The reversal of 634809412 is 214908436.

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, 300664 + ... + 302767.

It is an arithmetic number, because the mean of its divisors is an integer number (92928528).

Almost surely, 2^634809412 is an apocalyptic number.

It is an amenable number.

634809412 is a deficient number, since it is larger than the sum of its proper divisors (480332924).

634809412 is a wasteful number, since it uses less digits than its factorization.

634809412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603698 (or 603696 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 634809412 is about 25195.4244258754. The cubic root of 634809412 is about 859.4378027438.

The spelling of 634809412 in words is "six hundred thirty-four million, eight hundred nine thousand, four hundred twelve".