632991042 has 48 divisors (see below), whose sum is σ = 1482711360. Its totient is φ = 194485536.

The previous prime is 632990993. The next prime is 632991043. The reversal of 632991042 is 240199236.

632991042 is a `hidden beast` number, since 632 + 9 + 9 + 10 + 4 + 2 = 666.

632991042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×632991042³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 632990988 and 632991006.

It is not an unprimeable number, because it can be changed into a prime (632991043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12358 + ... + 37665.

It is an arithmetic number, because the mean of its divisors is an integer number (30889820).

Almost surely, 2^632991042 is an apocalyptic number.

632991042 is an abundant number, since it is smaller than the sum of its proper divisors (849720318).

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

632991042 is a wasteful number, since it uses less digits than its factorization.

632991042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50087 (or 50084 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 632991042 is about 25159.3132259209. The cubic root of 632991042 is about 858.6164168689.

The spelling of 632991042 in words is "six hundred thirty-two million, nine hundred ninety-one thousand, forty-two".