12994668 has 72 divisors (see below), whose sum is σ = 35315280. Its totient is φ = 4173120.

The previous prime is 12994649. The next prime is 12994679. The reversal of 12994668 is 86649921.

It is a happy number.

It is a super-2 number, since 2×12994668² = 337722792860448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27958 + ... + 28418.

It is an arithmetic number, because the mean of its divisors is an integer number (490490).

Almost surely, 2^12994668 is an apocalyptic number.

12994668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12994668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17657640).

12994668 is an abundant number, since it is smaller than the sum of its proper divisors (22320612).

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

12994668 is a wasteful number, since it uses less digits than its factorization.

12994668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 495 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 12994668 is about 3604.8117842684. The cubic root of 12994668 is about 235.1013174105.

The spelling of 12994668 in words is "twelve million, nine hundred ninety-four thousand, six hundred sixty-eight".