18376227 has 20 divisors (see below), whose sum is σ = 28401120. Its totient is φ = 11826864.

The previous prime is 18376207. The next prime is 18376231. The reversal of 18376227 is 72267381.

It is a de Polignac number, because none of the positive numbers 2^k-18376227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18376191 and 18376200.

It is not an unprimeable number, because it can be changed into a prime (18376207) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1563 + ... + 6260.

It is an arithmetic number, because the mean of its divisors is an integer number (1420056).

Almost surely, 2^18376227 is an apocalyptic number.

18376227 is a deficient number, since it is larger than the sum of its proper divisors (10024893).

18376227 is an equidigital number, since it uses as much as digits as its factorization.

18376227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7864 (or 7855 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 18376227 is about 4286.7501676678. The cubic root of 18376227 is about 263.8874778741.

The spelling of 18376227 in words is "eighteen million, three hundred seventy-six thousand, two hundred twenty-seven".