18266196 has 36 divisors (see below), whose sum is σ = 46156992. Its totient is φ = 5619744.

The previous prime is 18266191. The next prime is 18266207. The reversal of 18266196 is 69166281.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18266191) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2476 + ... + 6531.

Almost surely, 2^18266196 is an apocalyptic number.

It is an amenable number.

18266196 is an abundant number, since it is smaller than the sum of its proper divisors (27890796).

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

18266196 is a wasteful number, since it uses less digits than its factorization.

18266196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9040 (or 9025 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 18266196 is about 4273.8970507021. The cubic root of 18266196 is about 263.3597317266.

The spelling of 18266196 in words is "eighteen million, two hundred sixty-six thousand, one hundred ninety-six".