631124442 has 24 divisors (see below), whose sum is σ = 1472624244. Its totient is φ = 194192064.

The previous prime is 631124441. The next prime is 631124453. The reversal of 631124442 is 244421136.

It is a happy number.

631124442 is a `hidden beast` number, since 631 + 1 + 24 + 4 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 625550121 + 5574321 = 25011^2 + 2361^2 .

It is a super-2 number, since 2×631124442² = 796636122579622728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (631124441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1348323 + ... + 1348790.

Almost surely, 2^631124442 is an apocalyptic number.

631124442 is an abundant number, since it is smaller than the sum of its proper divisors (841499802).

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

631124442 is a wasteful number, since it uses less digits than its factorization.

631124442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697134 (or 2697131 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 631124442 is about 25122.1902309492. The cubic root of 631124442 is about 857.7716069351.

Adding to 631124442 its reverse (244421136), we get a palindrome (875545578).

The spelling of 631124442 in words is "six hundred thirty-one million, one hundred twenty-four thousand, four hundred forty-two".