31104000440 has 16 divisors (see below), whose sum is σ = 69984001080. Its totient is φ = 12441600160.

The previous prime is 31104000413. The next prime is 31104000463. The reversal of 31104000440 is 4400040113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388799966 + ... + 388800045.

Almost surely, 2^31104000440 is an apocalyptic number.

It is an amenable number.

31104000440 is an abundant number, since it is smaller than the sum of its proper divisors (38880000640).

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

31104000440 is a wasteful number, since it uses less digits than its factorization.

31104000440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777600022 (or 777600018 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 31104000440 its reverse (4400040113), we get a palindrome (35504040553).

The spelling of 31104000440 in words is "thirty-one billion, one hundred four million, four hundred forty", and thus it is an aban number.