18393214 has 16 divisors (see below), whose sum is σ = 31586400. Its totient is φ = 7869024.

The previous prime is 18393203. The next prime is 18393223. The reversal of 18393214 is 41239381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14352 + ... + 15580.

It is an arithmetic number, because the mean of its divisors is an integer number (1974150).

Almost surely, 2^18393214 is an apocalyptic number.

18393214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18393214 is a deficient number, since it is larger than the sum of its proper divisors (13193186).

18393214 is a wasteful number, since it uses less digits than its factorization.

18393214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307.

The product of its digits is 5184, while the sum is 31.

The square root of 18393214 is about 4288.7310477576. The cubic root of 18393214 is about 263.9687654354.

The spelling of 18393214 in words is "eighteen million, three hundred ninety-three thousand, two hundred fourteen".