12440924532 has 18 divisors (see below), whose sum is σ = 31447892658. Its totient is φ = 4146974832.

The previous prime is 12440924527. The next prime is 12440924567. The reversal of 12440924532 is 23542904421.

It is a happy number.

12440924532 is a `hidden beast` number, since 1 + 2 + 4 + 409 + 245 + 3 + 2 = 666.

12440924532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9628319376 + 2812605156 = 98124^2 + 53034^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 345581237 = 12440924532 / (1 + 2 + 4 + 4 + 0 + 9 + 2 + 4 + 5 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 172790583 + ... + 172790654.

Almost surely, 2^12440924532 is an apocalyptic number.

12440924532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12440924532 is an abundant number, since it is smaller than the sum of its proper divisors (19006968126).

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

12440924532 is a wasteful number, since it uses less digits than its factorization.

12440924532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345581247 (or 345581242 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 12440924532 in words is "twelve billion, four hundred forty million, nine hundred twenty-four thousand, five hundred thirty-two".