18450196 has 6 divisors (see below), whose sum is σ = 32287850. Its totient is φ = 9225096.

The previous prime is 18450193. The next prime is 18450203. The reversal of 18450196 is 69105481.

18450196 is nontrivially palindromic in base 5.

It can be written as a sum of positive squares in only one way, i.e., 16289296 + 2160900 = 4036^2 + 1470^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2306271 + ... + 2306278.

Almost surely, 2^18450196 is an apocalyptic number.

It is an amenable number.

18450196 is a deficient number, since it is larger than the sum of its proper divisors (13837654).

18450196 is a wasteful number, since it uses less digits than its factorization.

18450196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4612553 (or 4612551 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 18450196 is about 4295.3691343120. The cubic root of 18450196 is about 264.2410753227.

The spelling of 18450196 in words is "eighteen million, four hundred fifty thousand, one hundred ninety-six".