31304444444 has 24 divisors (see below), whose sum is σ = 67424958048. Its totient is φ = 12384175680.

The previous prime is 31304444417. The next prime is 31304444449. The reversal of 31304444444 is 44444440313.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

31304444444 is a modest number, since divided by 444444 gives 31304 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31304444449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 43000247 + ... + 43000974.

It is an arithmetic number, because the mean of its divisors is an integer number (2809373252).

Almost surely, 2^31304444444 is an apocalyptic number.

It is an amenable number.

31304444444 is an abundant number, since it is smaller than the sum of its proper divisors (36120513604).

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

31304444444 is a wasteful number, since it uses less digits than its factorization.

31304444444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86001245 (or 86001243 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 31304444444 its reverse (44444440313), we get a palindrome (75748884757).

The spelling of 31304444444 in words is "thirty-one billion, three hundred four million, four hundred forty-four thousand, four hundred forty-four".