18225282 has 16 divisors (see below), whose sum is σ = 37707840. Its totient is φ = 5865552.

The previous prime is 18225271. The next prime is 18225283. The reversal of 18225282 is 28252281.

It is not an unprimeable number, because it can be changed into a prime (18225283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52198 + ... + 52545.

It is an arithmetic number, because the mean of its divisors is an integer number (2356740).

Almost surely, 2^18225282 is an apocalyptic number.

18225282 is an abundant number, since it is smaller than the sum of its proper divisors (19482558).

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

18225282 is a wasteful number, since it uses less digits than its factorization.

18225282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104777.

The product of its digits is 5120, while the sum is 30.

The square root of 18225282 is about 4269.1078693329. The cubic root of 18225282 is about 263.1629537540.

The spelling of 18225282 in words is "eighteen million, two hundred twenty-five thousand, two hundred eighty-two".