18208234 has 16 divisors (see below), whose sum is σ = 30217536. Its totient is φ = 8159200.

The previous prime is 18208231. The next prime is 18208261. The reversal of 18208234 is 43280281.

It is not an unprimeable number, because it can be changed into a prime (18208231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4267 + ... + 7390.

It is an arithmetic number, because the mean of its divisors is an integer number (1888596).

Almost surely, 2^18208234 is an apocalyptic number.

18208234 is a deficient number, since it is larger than the sum of its proper divisors (12009302).

18208234 is a wasteful number, since it uses less digits than its factorization.

18208234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11741.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 18208234 is about 4267.1107320996. The cubic root of 18208234 is about 263.0808736042.

The spelling of 18208234 in words is "eighteen million, two hundred eight thousand, two hundred thirty-four".