31405044244 has 12 divisors (see below), whose sum is σ = 62810088544. Its totient is φ = 13459304664.

The previous prime is 31405044239. The next prime is 31405044259. The reversal of 31405044244 is 44244050413.

31405044244 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560804334 + ... + 560804389.

Almost surely, 2^31405044244 is an apocalyptic number.

It is an amenable number.

31405044244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31405044244 is a wasteful number, since it uses less digits than its factorization.

31405044244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121608734 (or 1121608732 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 31405044244 its reverse (44244050413), we get a palindrome (75649094657).

The spelling of 31405044244 in words is "thirty-one billion, four hundred five million, forty-four thousand, two hundred forty-four".