18405196 has 12 divisors (see below), whose sum is σ = 33248320. Its totient is φ = 8905680.

The previous prime is 18405157. The next prime is 18405199. The reversal of 18405196 is 69150481.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18405199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74091 + ... + 74338.

Almost surely, 2^18405196 is an apocalyptic number.

It is an amenable number.

18405196 is a deficient number, since it is larger than the sum of its proper divisors (14843124).

18405196 is a wasteful number, since it uses less digits than its factorization.

18405196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148464 (or 148462 counting only the distinct ones).

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

The square root of 18405196 is about 4290.1277370260. The cubic root of 18405196 is about 264.0260725704.

The spelling of 18405196 in words is "eighteen million, four hundred five thousand, one hundred ninety-six".