31424044 has 6 divisors (see below), whose sum is σ = 54992084. Its totient is φ = 15712020.

The previous prime is 31424033. The next prime is 31424047. The reversal of 31424044 is 44042413.

It is not an unprimeable number, because it can be changed into a prime (31424047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3928002 + ... + 3928009.

Almost surely, 2^31424044 is an apocalyptic number.

It is an amenable number.

31424044 is a deficient number, since it is larger than the sum of its proper divisors (23568040).

31424044 is a wasteful number, since it uses less digits than its factorization.

31424044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7856015 (or 7856013 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 31424044 is about 5605.7152978010. The cubic root of 31424044 is about 315.5639314454.

Adding to 31424044 its reverse (44042413), we get a palindrome (75466457).

The spelling of 31424044 in words is "thirty-one million, four hundred twenty-four thousand, forty-four".