12865740 has 48 divisors (see below), whose sum is σ = 37594368. Its totient is φ = 3281344.

The previous prime is 12865711. The next prime is 12865757. The reversal of 12865740 is 4756821.

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, 3282 + ... + 6041.

It is an arithmetic number, because the mean of its divisors is an integer number (783216).

Almost surely, 2^12865740 is an apocalyptic number.

12865740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12865740 is an abundant number, since it is smaller than the sum of its proper divisors (24728628).

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

12865740 is a wasteful number, since it uses less digits than its factorization.

12865740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9358 (or 9356 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 12865740 is about 3586.8844419635. The cubic root of 12865740 is about 234.3212040087.

The spelling of 12865740 in words is "twelve million, eight hundred sixty-five thousand, seven hundred forty".