31102044 has 24 divisors (see below), whose sum is σ = 76840848. Its totient is φ = 9757440.

The previous prime is 31102039. The next prime is 31102051. The reversal of 31102044 is 44020113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76027 + ... + 76434.

It is an arithmetic number, because the mean of its divisors is an integer number (3201702).

Almost surely, 2^31102044 is an apocalyptic number.

31102044 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31102044 is an abundant number, since it is smaller than the sum of its proper divisors (45738804).

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

31102044 is a wasteful number, since it uses less digits than its factorization.

31102044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152485 (or 152483 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 31102044 is about 5576.9206557024. The cubic root of 31102044 is about 314.4823748698.

Adding to 31102044 its reverse (44020113), we get a palindrome (75122157).

The spelling of 31102044 in words is "thirty-one million, one hundred two thousand, forty-four".