18365214 has 32 divisors (see below), whose sum is σ = 42958080. Its totient is φ = 5124672.

The previous prime is 18365197. The next prime is 18365231. The reversal of 18365214 is 41256381.

It is an interprime number because it is at equal distance from previous prime (18365197) and next prime (18365231).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3279 + ... + 6890.

It is an arithmetic number, because the mean of its divisors is an integer number (1342440).

Almost surely, 2^18365214 is an apocalyptic number.

18365214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18365214 is an abundant number, since it is smaller than the sum of its proper divisors (24592866).

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

18365214 is a wasteful number, since it uses less digits than its factorization.

18365214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10224.

The product of its digits is 5760, while the sum is 30.

The square root of 18365214 is about 4285.4654356324. The cubic root of 18365214 is about 263.8347508089.

The spelling of 18365214 in words is "eighteen million, three hundred sixty-five thousand, two hundred fourteen".