31424404444 has 24 divisors (see below), whose sum is σ = 55679853600. Its totient is φ = 15516314880.

The previous prime is 31424404393. The next prime is 31424404463. The reversal of 31424404444 is 44440442413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233449 + ... + 342559.

It is an arithmetic number, because the mean of its divisors is an integer number (2319993900).

Almost surely, 2^31424404444 is an apocalyptic number.

It is an amenable number.

31424404444 is a deficient number, since it is larger than the sum of its proper divisors (24255449156).

31424404444 is a wasteful number, since it uses less digits than its factorization.

31424404444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110013 (or 110011 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 34.

Adding to 31424404444 its reverse (44440442413), we get a palindrome (75864846857).

The spelling of 31424404444 in words is "thirty-one billion, four hundred twenty-four million, four hundred four thousand, four hundred forty-four".