12440235504 has 20 divisors (see below), whose sum is σ = 32137275176. Its totient is φ = 4146745152.

The previous prime is 12440235499. The next prime is 12440235527. The reversal of 12440235504 is 40553204421.

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, 129585739 + ... + 129585834.

Almost surely, 2^12440235504 is an apocalyptic number.

It is an amenable number.

12440235504 is an abundant number, since it is smaller than the sum of its proper divisors (19697039672).

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

12440235504 is a wasteful number, since it uses less digits than its factorization.

12440235504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259171584 (or 259171578 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 12440235504 its reverse (40553204421), we get a palindrome (52993439925).

The spelling of 12440235504 in words is "twelve billion, four hundred forty million, two hundred thirty-five thousand, five hundred four".