18194230 has 8 divisors (see below), whose sum is σ = 32749632. Its totient is φ = 7277688.

The previous prime is 18194221. The next prime is 18194249. The reversal of 18194230 is 3249181.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909702 + ... + 909721.

It is an arithmetic number, because the mean of its divisors is an integer number (4093704).

Almost surely, 2^18194230 is an apocalyptic number.

18194230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18194230 is a deficient number, since it is larger than the sum of its proper divisors (14555402).

18194230 is a wasteful number, since it uses less digits than its factorization.

18194230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819430.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 18194230 is about 4265.4694935024. The cubic root of 18194230 is about 263.0134109119.

The spelling of 18194230 in words is "eighteen million, one hundred ninety-four thousand, two hundred thirty".