12668320 has 48 divisors (see below), whose sum is σ = 34207488. Its totient is φ = 4343040.

The previous prime is 12668287. The next prime is 12668353. The reversal of 12668320 is 2386621.

It is an interprime number because it is at equal distance from previous prime (12668287) and next prime (12668353).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4536 + ... + 6775.

It is an arithmetic number, because the mean of its divisors is an integer number (712656).

Almost surely, 2^12668320 is an apocalyptic number.

12668320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12668320 is an abundant number, since it is smaller than the sum of its proper divisors (21539168).

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

12668320 is a wasteful number, since it uses less digits than its factorization.

12668320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11333 (or 11325 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 12668320 is about 3559.2583497128. The cubic root of 12668320 is about 233.1164969694.

The spelling of 12668320 in words is "twelve million, six hundred sixty-eight thousand, three hundred twenty".