633612042 has 36 divisors (see below), whose sum is σ = 1596963186. Its totient is φ = 181031760.

The previous prime is 633612037. The next prime is 633612043. The reversal of 633612042 is 240216336.

633612042 is a `hidden beast` number, since 6 + 3 + 3 + 612 + 0 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 365995161 + 267616881 = 19131^2 + 16359^2 .

It is a junction number, because it is equal to n+sod(n) for n = 633611997 and 633612015.

It is not an unprimeable number, because it can be changed into a prime (633612043) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 358309 + ... + 360072.

Almost surely, 2^633612042 is an apocalyptic number.

633612042 is an abundant number, since it is smaller than the sum of its proper divisors (963351144).

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

633612042 is a wasteful number, since it uses less digits than its factorization.

633612042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718403 (or 718393 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 633612042 is about 25171.6515548742. The cubic root of 633612042 is about 858.8971088470.

Adding to 633612042 its reverse (240216336), we get a palindrome (873828378).

The spelling of 633612042 in words is "six hundred thirty-three million, six hundred twelve thousand, forty-two".