18836045 has 16 divisors (see below), whose sum is σ = 23353920. Its totient is φ = 14577024.

The previous prime is 18836039. The next prime is 18836047. The reversal of 18836045 is 54063881.

It is a cyclic number.

It is not a de Polignac number, because 18836045 - 2²⁴ = 2058829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18835996 and 18836014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18836047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19289 + ... + 20241.

It is an arithmetic number, because the mean of its divisors is an integer number (1459620).

Almost surely, 2^18836045 is an apocalyptic number.

It is an amenable number.

18836045 is a deficient number, since it is larger than the sum of its proper divisors (4517875).

18836045 is an equidigital number, since it uses as much as digits as its factorization.

18836045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 18836045 is about 4340.0512669783. The cubic root of 18836045 is about 266.0704064857.

The spelling of 18836045 in words is "eighteen million, eight hundred thirty-six thousand, forty-five".