18450194 has 16 divisors (see below), whose sum is σ = 31685568. Its totient is φ = 7893072.

The previous prime is 18450193. The next prime is 18450203. The reversal of 18450194 is 49105481.

It is a self number, because there is not a number n which added to its sum of digits gives 18450194.

It is not an unprimeable number, because it can be changed into a prime (18450193) 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, 11972 + ... + 13424.

It is an arithmetic number, because the mean of its divisors is an integer number (1980348).

Almost surely, 2^18450194 is an apocalyptic number.

18450194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18450194 is a deficient number, since it is larger than the sum of its proper divisors (13235374).

18450194 is a wasteful number, since it uses less digits than its factorization.

18450194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 18450194 is about 4295.3689015031. The cubic root of 18450194 is about 264.2410657748.

The spelling of 18450194 in words is "eighteen million, four hundred fifty thousand, one hundred ninety-four".