18813468 has 12 divisors (see below), whose sum is σ = 43898120. Its totient is φ = 6271152.

The previous prime is 18813451. The next prime is 18813469. The reversal of 18813468 is 86431881.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18813469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783883 + ... + 783906.

Almost surely, 2^18813468 is an apocalyptic number.

It is an amenable number.

18813468 is an abundant number, since it is smaller than the sum of its proper divisors (25084652).

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

18813468 is a wasteful number, since it uses less digits than its factorization.

18813468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567796 (or 1567794 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 18813468 is about 4337.4494809738. The cubic root of 18813468 is about 265.9640594402.

The spelling of 18813468 in words is "eighteen million, eight hundred thirteen thousand, four hundred sixty-eight".