12289998240 has 192 divisors, whose sum is σ = 46324051200. Its totient is φ = 3025216512.

The previous prime is 12289998239. The next prime is 12289998269. The reversal of 12289998240 is 4289998221.

12289998240 is a `hidden beast` number, since 1 + 228 + 99 + 98 + 240 = 666.

12289998240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 31 ways as a sum of consecutive naturals, for example, 53260 + ... + 165579.

It is an arithmetic number, because the mean of its divisors is an integer number (241271100).

Almost surely, 2^12289998240 is an apocalyptic number.

12289998240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12289998240 is an abundant number, since it is smaller than the sum of its proper divisors (34034052960).

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

12289998240 is a wasteful number, since it uses less digits than its factorization.

12289998240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218876 (or 218862 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 12289998240 in words is "twelve billion, two hundred eighty-nine million, nine hundred ninety-eight thousand, two hundred forty".