635138372 has 12 divisors (see below), whose sum is σ = 1212536976. Its totient is φ = 288699240.

The previous prime is 635138369. The next prime is 635138393. The reversal of 635138372 is 273831536.

635138372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 7217438 + ... + 7217525.

It is an arithmetic number, because the mean of its divisors is an integer number (101044748).

Almost surely, 2^635138372 is an apocalyptic number.

It is an amenable number.

635138372 is a deficient number, since it is larger than the sum of its proper divisors (577398604).

635138372 is a wasteful number, since it uses less digits than its factorization.

635138372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14434978 (or 14434976 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 635138372 is about 25201.9517498149. The cubic root of 635138372 is about 859.5862314600.

The spelling of 635138372 in words is "six hundred thirty-five million, one hundred thirty-eight thousand, three hundred seventy-two".