12243510440 has 48 divisors (see below), whose sum is σ = 32045519700. Its totient is φ = 4197774336.

The previous prime is 12243510401. The next prime is 12243510533. The reversal of 12243510440 is 4401534221.

It can be written as a sum of positive squares in 2 ways, for example, as 11329899364 + 913611076 = 106442^2 + 30226^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3121385 + ... + 3125304.

Almost surely, 2^12243510440 is an apocalyptic number.

12243510440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12243510440 is an abundant number, since it is smaller than the sum of its proper divisors (19802009260).

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

12243510440 is a wasteful number, since it uses less digits than its factorization.

12243510440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6246714 (or 6246703 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The spelling of 12243510440 in words is "twelve billion, two hundred forty-three million, five hundred ten thousand, four hundred forty".