18025196 has 24 divisors (see below), whose sum is σ = 36562176. Its totient is φ = 7615440.

The previous prime is 18025187. The next prime is 18025223. The reversal of 18025196 is 69152081.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2546 + ... + 6521.

It is an arithmetic number, because the mean of its divisors is an integer number (1523424).

Almost surely, 2^18025196 is an apocalyptic number.

It is an amenable number.

18025196 is an abundant number, since it is smaller than the sum of its proper divisors (18536980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18025196 is a wasteful number, since it uses less digits than its factorization.

18025196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9149 (or 9147 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 18025196 is about 4245.6090258054. The cubic root of 18025196 is about 262.1963642616.

The spelling of 18025196 in words is "eighteen million, twenty-five thousand, one hundred ninety-six".