31444430444 has 24 divisors (see below), whose sum is σ = 62974698528. Its totient is φ = 13457790720.

The previous prime is 31444430431. The next prime is 31444430447. The reversal of 31444430444 is 44403444413.

It is not an unprimeable number, because it can be changed into a prime (31444430447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745517 + ... + 786564.

It is an arithmetic number, because the mean of its divisors is an integer number (2623945772).

Almost surely, 2^31444430444 is an apocalyptic number.

It is an amenable number.

31444430444 is an abundant number, since it is smaller than the sum of its proper divisors (31530268084).

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

31444430444 is a wasteful number, since it uses less digits than its factorization.

31444430444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532825 (or 1532823 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 31444430444 its reverse (44403444413), we get a palindrome (75847874857).

The spelling of 31444430444 in words is "thirty-one billion, four hundred forty-four million, four hundred thirty thousand, four hundred forty-four".