18814836 has 12 divisors (see below), whose sum is σ = 43901312. Its totient is φ = 6271608.

The previous prime is 18814819. The next prime is 18814847. The reversal of 18814836 is 63841881.

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

It is a junction number, because it is equal to n+sod(n) for n = 18814794 and 18814803.

It is a congruent number.

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, 783940 + ... + 783963.

Almost surely, 2^18814836 is an apocalyptic number.

It is an amenable number.

18814836 is an abundant number, since it is smaller than the sum of its proper divisors (25086476).

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

18814836 is a wasteful number, since it uses less digits than its factorization.

18814836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567910 (or 1567908 counting only the distinct ones).

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

The square root of 18814836 is about 4337.6071744684. The cubic root of 18814836 is about 265.9705057090.

The spelling of 18814836 in words is "eighteen million, eight hundred fourteen thousand, eight hundred thirty-six".