12504014440 has 32 divisors (see below), whose sum is σ = 28322865000. Its totient is φ = 4968035584.

The previous prime is 12504014431. The next prime is 12504014447. The reversal of 12504014440 is 4441040521.

It can be written as a sum of positive squares in 4 ways, for example, as 7624433124 + 4879581316 = 87318^2 + 69854^2 .

It is not an unprimeable number, because it can be changed into a prime (12504014447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1043035 + ... + 1054954.

Almost surely, 2^12504014440 is an apocalyptic number.

12504014440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12504014440 is an abundant number, since it is smaller than the sum of its proper divisors (15818850560).

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

12504014440 is a wasteful number, since it uses less digits than its factorization.

12504014440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098149 (or 2098145 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 12504014440 its reverse (4441040521), we get a palindrome (16945054961).

The spelling of 12504014440 in words is "twelve billion, five hundred four million, fourteen thousand, four hundred forty".