18612412 has 24 divisors (see below), whose sum is σ = 40089056. Its totient is φ = 7363008.

The previous prime is 18612389. The next prime is 18612413. The reversal of 18612412 is 21421681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18612413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25203 + ... + 25930.

Almost surely, 2^18612412 is an apocalyptic number.

It is an amenable number.

18612412 is an abundant number, since it is smaller than the sum of its proper divisors (21476644).

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

18612412 is a wasteful number, since it uses less digits than its factorization.

18612412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51157 (or 51155 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 18612412 is about 4314.2104723808. The cubic root of 18612412 is about 265.0132282467.

The spelling of 18612412 in words is "eighteen million, six hundred twelve thousand, four hundred twelve".