18275208 has 64 divisors (see below), whose sum is σ = 52590720. Its totient is φ = 5184000.

The previous prime is 18275197. The next prime is 18275209. The reversal of 18275208 is 80257281.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18275209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30108 + ... + 30708.

It is an arithmetic number, because the mean of its divisors is an integer number (821730).

Almost surely, 2^18275208 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 18275208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26295360).

18275208 is an abundant number, since it is smaller than the sum of its proper divisors (34315512).

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

18275208 is a wasteful number, since it uses less digits than its factorization.

18275208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 18275208 is about 4274.9512277920. The cubic root of 18275208 is about 263.4030359024.

The spelling of 18275208 in words is "eighteen million, two hundred seventy-five thousand, two hundred eight".