18234194 has 16 divisors (see below), whose sum is σ = 29907360. Its totient is φ = 8268960.

The previous prime is 18234179. The next prime is 18234199. The reversal of 18234194 is 49143281.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18234194.

It is not an unprimeable number, because it can be changed into a prime (18234199) 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, 13502 + ... + 14790.

It is an arithmetic number, because the mean of its divisors is an integer number (1869210).

Almost surely, 2^18234194 is an apocalyptic number.

18234194 is a deficient number, since it is larger than the sum of its proper divisors (11673166).

18234194 is a wasteful number, since it uses less digits than its factorization.

18234194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945.

The product of its digits is 6912, while the sum is 32.

The square root of 18234194 is about 4270.1515195599. The cubic root of 18234194 is about 263.2058415416.

The spelling of 18234194 in words is "eighteen million, two hundred thirty-four thousand, one hundred ninety-four".