12440436504 has 64 divisors (see below), whose sum is σ = 33292944000. Its totient is φ = 3861964800.

The previous prime is 12440436487. The next prime is 12440436509. The reversal of 12440436504 is 40563404421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440436509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204297 + ... + 258104.

It is an arithmetic number, because the mean of its divisors is an integer number (520202250).

Almost surely, 2^12440436504 is an apocalyptic number.

It is an amenable number.

12440436504 is an abundant number, since it is smaller than the sum of its proper divisors (20852507496).

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

12440436504 is a wasteful number, since it uses less digits than its factorization.

12440436504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462488 (or 462484 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 12440436504 in words is "twelve billion, four hundred forty million, four hundred thirty-six thousand, five hundred four".