12440408532 has 12 divisors (see below), whose sum is σ = 29027619936. Its totient is φ = 4146802840.

The previous prime is 12440408501. The next prime is 12440408551. The reversal of 12440408532 is 23580404421.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12440408493 and 12440408502.

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, 518350344 + ... + 518350367.

It is an arithmetic number, because the mean of its divisors is an integer number (2418968328).

Almost surely, 2^12440408532 is an apocalyptic number.

12440408532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12440408532 is an abundant number, since it is smaller than the sum of its proper divisors (16587211404).

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

12440408532 is a wasteful number, since it uses less digits than its factorization.

12440408532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036700718 (or 1036700716 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The spelling of 12440408532 in words is "twelve billion, four hundred forty million, four hundred eight thousand, five hundred thirty-two".