18426227 has 2 divisors, whose sum is σ = 18426228. Its totient is φ = 18426226.

The previous prime is 18426211. The next prime is 18426241. The reversal of 18426227 is 72262481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18426227 - 2⁴ = 18426211 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18426193 and 18426202.

It is not a weakly prime, because it can be changed into another prime (18426277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9213113 + 9213114.

It is an arithmetic number, because the mean of its divisors is an integer number (9213114).

Almost surely, 2^18426227 is an apocalyptic number.

18426227 is a deficient number, since it is larger than the sum of its proper divisors (1).

18426227 is an equidigital number, since it uses as much as digits as its factorization.

18426227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 32.

The square root of 18426227 is about 4292.5781297491. The cubic root of 18426227 is about 264.1265988692.

The spelling of 18426227 in words is "eighteen million, four hundred twenty-six thousand, two hundred twenty-seven".