18052288 has 28 divisors (see below), whose sum is σ = 36120832. Its totient is φ = 8951040.

The previous prime is 18052273. The next prime is 18052313. The reversal of 18052288 is 88225081.

It is a happy number.

18052288 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7018 + ... + 9238.

Almost surely, 2^18052288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18052288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18060416).

18052288 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18052288 is a wasteful number, since it uses less digits than its factorization.

18052288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360 (or 2350 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 18052288 is about 4248.7984183767. The cubic root of 18052288 is about 262.3276595151.

The spelling of 18052288 in words is "eighteen million, fifty-two thousand, two hundred eighty-eight".