635472972 has 48 divisors (see below), whose sum is σ = 1659414400. Its totient is φ = 210295440.

The previous prime is 635472967. The next prime is 635472979. The reversal of 635472972 is 279274536.

635472972 is a `hidden beast` number, since 6 + 354 + 7 + 297 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (635472979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6154 + ... + 36177.

Almost surely, 2^635472972 is an apocalyptic number.

It is an amenable number.

635472972 is an abundant number, since it is smaller than the sum of its proper divisors (1023941428).

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

635472972 is a wasteful number, since it uses less digits than its factorization.

635472972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42483 (or 42475 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 635472972 is about 25208.5892504916. The cubic root of 635472972 is about 859.7371524107.

The spelling of 635472972 in words is "six hundred thirty-five million, four hundred seventy-two thousand, nine hundred seventy-two".