31444412 has 12 divisors (see below), whose sum is σ = 55646640. Its totient is φ = 15545376.

The previous prime is 31444403. The next prime is 31444453. The reversal of 31444412 is 21444413.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43808 + ... + 44519.

It is an arithmetic number, because the mean of its divisors is an integer number (4637220).

Almost surely, 2^31444412 is an apocalyptic number.

It is an amenable number.

31444412 is a deficient number, since it is larger than the sum of its proper divisors (24202228).

31444412 is a wasteful number, since it uses less digits than its factorization.

31444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88420 (or 88418 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 31444412 is about 5607.5317208198. The cubic root of 31444412 is about 315.6320960010.

Adding to 31444412 its reverse (21444413), we get a palindrome (52888825).

Subtracting from 31444412 its reverse (21444413), we obtain a palindrome (9999999).

The spelling of 31444412 in words is "thirty-one million, four hundred forty-four thousand, four hundred twelve".