18876844 has 12 divisors (see below), whose sum is σ = 37753744. Its totient is φ = 8090064.

The previous prime is 18876829. The next prime is 18876857. The reversal of 18876844 is 44867881.

It is a happy number.

18876844 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 18876794 and 18876803.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337059 + ... + 337114.

Almost surely, 2^18876844 is an apocalyptic number.

18876844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18876844 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18876844 is a wasteful number, since it uses less digits than its factorization.

18876844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674184 (or 674182 counting only the distinct ones).

The product of its digits is 344064, while the sum is 46.

The square root of 18876844 is about 4344.7490146152. The cubic root of 18876844 is about 266.2623713825.

The spelling of 18876844 in words is "eighteen million, eight hundred seventy-six thousand, eight hundred forty-four".