31044140440 has 16 divisors (see below), whose sum is σ = 69849316080. Its totient is φ = 12417656160.

The previous prime is 31044140431. The next prime is 31044140459. The reversal of 31044140440 is 4404144013.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388051716 + ... + 388051795.

It is an arithmetic number, because the mean of its divisors is an integer number (4365582255).

Almost surely, 2^31044140440 is an apocalyptic number.

It is an amenable number.

31044140440 is an abundant number, since it is smaller than the sum of its proper divisors (38805175640).

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

31044140440 is a wasteful number, since it uses less digits than its factorization.

31044140440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776103522 (or 776103518 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 31044140440 its reverse (4404144013), we get a palindrome (35448284453).

The spelling of 31044140440 in words is "thirty-one billion, forty-four million, one hundred forty thousand, four hundred forty".