18225332 has 12 divisors (see below), whose sum is σ = 33573120. Its totient is φ = 8633016.

The previous prime is 18225329. The next prime is 18225341. The reversal of 18225332 is 23352281.

It is a congruent 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, 119828 + ... + 119979.

It is an arithmetic number, because the mean of its divisors is an integer number (2797760).

Almost surely, 2^18225332 is an apocalyptic number.

It is an amenable number.

18225332 is a deficient number, since it is larger than the sum of its proper divisors (15347788).

18225332 is a wasteful number, since it uses less digits than its factorization.

18225332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239830 (or 239828 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 18225332 is about 4269.1137253533. The cubic root of 18225332 is about 263.1631944112.

The spelling of 18225332 in words is "eighteen million, two hundred twenty-five thousand, three hundred thirty-two".