12308928240 has 80 divisors (see below), whose sum is σ = 43608780288. Its totient is φ = 2813468928.

The previous prime is 12308928227. The next prime is 12308928241. The reversal of 12308928240 is 4282980321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12308928241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3661692 + ... + 3665051.

Almost surely, 2^12308928240 is an apocalyptic number.

12308928240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12308928240 is an abundant number, since it is smaller than the sum of its proper divisors (31299852048).

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

12308928240 is a wasteful number, since it uses less digits than its factorization.

12308928240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7326766 (or 7326760 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 12308928240 in words is "twelve billion, three hundred eight million, nine hundred twenty-eight thousand, two hundred forty".