31324044 has 48 divisors (see below), whose sum is σ = 75075840. Its totient is φ = 10161600.

The previous prime is 31324003. The next prime is 31324061. The reversal of 31324044 is 44042313.

It is a self number, because there is not a number n which added to its sum of digits gives 31324044.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 106762 + ... + 107054.

It is an arithmetic number, because the mean of its divisors is an integer number (1564080).

Almost surely, 2^31324044 is an apocalyptic number.

It is an amenable number.

31324044 is an abundant number, since it is smaller than the sum of its proper divisors (43751796).

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

31324044 is a wasteful number, since it uses less digits than its factorization.

31324044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 31324044 is about 5596.7887221156. The cubic root of 31324044 is about 315.2288385022.

Adding to 31324044 its reverse (44042313), we get a palindrome (75366357).

The spelling of 31324044 in words is "thirty-one million, three hundred twenty-four thousand, forty-four".