634021272 has 24 divisors (see below), whose sum is σ = 1717141140. Its totient is φ = 211340400.

The previous prime is 634021259. The next prime is 634021277. The reversal of 634021272 is 272120436.

634021272 is a `hidden beast` number, since 634 + 0 + 2 + 1 + 27 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634021277) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4402854 + ... + 4402997.

Almost surely, 2^634021272 is an apocalyptic number.

It is an amenable number.

634021272 is an abundant number, since it is smaller than the sum of its proper divisors (1083119868).

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

634021272 is a wasteful number, since it uses less digits than its factorization.

634021272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805863 (or 8805856 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 634021272 is about 25179.7790300074. The cubic root of 634021272 is about 859.0819805542.

The spelling of 634021272 in words is "six hundred thirty-four million, twenty-one thousand, two hundred seventy-two".