31442013404 has 12 divisors (see below), whose sum is σ = 55073965128. Its totient is φ = 15706594800.

The previous prime is 31442013347. The next prime is 31442013479. The reversal of 31442013404 is 40431024413.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3598067 + ... + 3606794.

It is an arithmetic number, because the mean of its divisors is an integer number (4589497094).

Almost surely, 2^31442013404 is an apocalyptic number.

It is an amenable number.

31442013404 is a deficient number, since it is larger than the sum of its proper divisors (23631951724).

31442013404 is a wasteful number, since it uses less digits than its factorization.

31442013404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7205956 (or 7205954 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31442013404 its reverse (40431024413), we get a palindrome (71873037817).

The spelling of 31442013404 in words is "thirty-one billion, four hundred forty-two million, thirteen thousand, four hundred four".