31104234440 has 16 divisors (see below), whose sum is σ = 69984527580. Its totient is φ = 12441693760.

The previous prime is 31104234407. The next prime is 31104234583. The reversal of 31104234440 is 4443240113.

It can be written as a sum of positive squares in 2 ways, for example, as 30204354436 + 899880004 = 173794^2 + 29998^2 .

It is a super-3 number, since 3×31104234440³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 388802891 + ... + 388802970.

Almost surely, 2^31104234440 is an apocalyptic number.

It is an amenable number.

31104234440 is an abundant number, since it is smaller than the sum of its proper divisors (38880293140).

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

31104234440 is a wasteful number, since it uses less digits than its factorization.

31104234440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777605872 (or 777605868 counting only the distinct ones).

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

Adding to 31104234440 its reverse (4443240113), we get a palindrome (35547474553).

The spelling of 31104234440 in words is "thirty-one billion, one hundred four million, two hundred thirty-four thousand, four hundred forty".