12268132440 has 64 divisors (see below), whose sum is σ = 36824133600. Its totient is φ = 3269747712.

The previous prime is 12268132427. The next prime is 12268132451. The reversal of 12268132440 is 4423186221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205516 + ... + 258404.

Almost surely, 2^12268132440 is an apocalyptic number.

12268132440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12268132440 is an abundant number, since it is smaller than the sum of its proper divisors (24556001160).

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

12268132440 is a wasteful number, since it uses less digits than its factorization.

12268132440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54836 (or 54832 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 12268132440 in words is "twelve billion, two hundred sixty-eight million, one hundred thirty-two thousand, four hundred forty".