633131442 has 48 divisors (see below), whose sum is σ = 1515646080. Its totient is φ = 189991296.

The previous prime is 633131437. The next prime is 633131467. The reversal of 633131442 is 244131336.

633131442 is a `hidden beast` number, since 633 + 13 + 14 + 4 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37942 + ... + 52017.

It is an arithmetic number, because the mean of its divisors is an integer number (31575960).

Almost surely, 2^633131442 is an apocalyptic number.

633131442 is an abundant number, since it is smaller than the sum of its proper divisors (882514638).

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

633131442 is a wasteful number, since it uses less digits than its factorization.

633131442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90007 (or 90004 counting only the distinct ones).

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

The square root of 633131442 is about 25162.1032904644. The cubic root of 633131442 is about 858.6798937194.

Adding to 633131442 its reverse (244131336), we get a palindrome (877262778).

It can be divided in two parts, 6331 and 31442, that added together give a palindrome (37773).

The spelling of 633131442 in words is "six hundred thirty-three million, one hundred thirty-one thousand, four hundred forty-two".