18045814 has 12 divisors (see below), whose sum is σ = 27323244. Its totient is φ = 8938812.

The previous prime is 18045809. The next prime is 18045817. The reversal of 18045814 is 41854081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18045817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38409 + ... + 38875.

It is an arithmetic number, because the mean of its divisors is an integer number (2276937).

Almost surely, 2^18045814 is an apocalyptic number.

18045814 is a deficient number, since it is larger than the sum of its proper divisors (9277430).

18045814 is an equidigital number, since it uses as much as digits as its factorization.

18045814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 18045814 is about 4248.0364876022. The cubic root of 18045814 is about 262.2962966887.

Adding to 18045814 its reverse (41854081), we get a palindrome (59899895).

The spelling of 18045814 in words is "eighteen million, forty-five thousand, eight hundred fourteen".