18096220 has 12 divisors (see below), whose sum is σ = 38002104. Its totient is φ = 7238480.

The previous prime is 18096217. The next prime is 18096229. The reversal of 18096220 is 2269081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18096229) 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, 452386 + ... + 452425.

It is an arithmetic number, because the mean of its divisors is an integer number (3166842).

Almost surely, 2^18096220 is an apocalyptic number.

18096220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18096220 is an abundant number, since it is smaller than the sum of its proper divisors (19905884).

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

18096220 is a wasteful number, since it uses less digits than its factorization.

18096220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904820 (or 904818 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 18096220 is about 4253.9652090726. The cubic root of 18096220 is about 262.5402870895.

The spelling of 18096220 in words is "eighteen million, ninety-six thousand, two hundred twenty".