31364440244 has 12 divisors (see below), whose sum is σ = 54973403268. Its totient is φ = 15657753600.

The previous prime is 31364440193. The next prime is 31364440259. The reversal of 31364440244 is 44204446313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13879667344 + 17484772900 = 117812^2 + 132230^2 .

It is a super-2 number, since 2×31364440244² (a number of 22 digits) contains 22 as substring.

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, 6113747 + ... + 6118874.

It is an arithmetic number, because the mean of its divisors is an integer number (4581116939).

Almost surely, 2^31364440244 is an apocalyptic number.

It is an amenable number.

31364440244 is a deficient number, since it is larger than the sum of its proper divisors (23608963024).

31364440244 is a wasteful number, since it uses less digits than its factorization.

31364440244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12233266 (or 12233264 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 31364440244 its reverse (44204446313), we get a palindrome (75568886557).

The spelling of 31364440244 in words is "thirty-one billion, three hundred sixty-four million, four hundred forty thousand, two hundred forty-four".