31045044 has 48 divisors (see below), whose sum is σ = 74088000. Its totient is φ = 10116096.

The previous prime is 31045039. The next prime is 31045067. The reversal of 31045044 is 44054013.

It is a self number, because there is not a number n which added to its sum of digits gives 31045044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173347 + ... + 173525.

It is an arithmetic number, because the mean of its divisors is an integer number (1543500).

Almost surely, 2^31045044 is an apocalyptic number.

It is an amenable number.

31045044 is an abundant number, since it is smaller than the sum of its proper divisors (43042956).

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

31045044 is a wasteful number, since it uses less digits than its factorization.

31045044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 31045044 is about 5571.8079651043. The cubic root of 31045044 is about 314.2901425193.

Adding to 31045044 its reverse (44054013), we get a palindrome (75099057).

It can be divided in two parts, 310 and 45044, that added together give a palindrome (45354).

The spelling of 31045044 in words is "thirty-one million, forty-five thousand, forty-four".