12918828 has 24 divisors (see below), whose sum is σ = 32463088. Its totient is φ = 3974976.

The previous prime is 12918811. The next prime is 12918839. The reversal of 12918828 is 82881921.

It is a super-2 number, since 2×12918828² = 333792233787168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 41251 + ... + 41562.

Almost surely, 2^12918828 is an apocalyptic number.

It is an amenable number.

12918828 is an abundant number, since it is smaller than the sum of its proper divisors (19544260).

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

12918828 is a wasteful number, since it uses less digits than its factorization.

12918828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82833 (or 82831 counting only the distinct ones).

The product of its digits is 18432, while the sum is 39.

The square root of 12918828 is about 3594.2771178639. The cubic root of 12918828 is about 234.6430555115.

The spelling of 12918828 in words is "twelve million, nine hundred eighteen thousand, eight hundred twenty-eight".