31044423 has 16 divisors (see below), whose sum is σ = 44979200. Its totient is φ = 18973440.

The previous prime is 31044401. The next prime is 31044437. The reversal of 31044423 is 32444013.

It is a de Polignac number, because none of the positive numbers 2^k-31044423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31044423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31044463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7018 + ... + 10551.

It is an arithmetic number, because the mean of its divisors is an integer number (2811200).

Almost surely, 2^31044423 is an apocalyptic number.

31044423 is a deficient number, since it is larger than the sum of its proper divisors (13934777).

31044423 is a wasteful number, since it uses less digits than its factorization.

31044423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17622.

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

The square root of 31044423 is about 5571.7522378512. The cubic root of 31044423 is about 314.2880469032.

Adding to 31044423 its reverse (32444013), we get a palindrome (63488436).

The spelling of 31044423 in words is "thirty-one million, forty-four thousand, four hundred twenty-three".