18325442 has 8 divisors (see below), whose sum is σ = 28158732. Its totient is φ = 8939200.

The previous prime is 18325429. The next prime is 18325499. The reversal of 18325442 is 24452381.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18054001 + 271441 = 4249^2 + 521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 111659 + ... + 111822.

Almost surely, 2^18325442 is an apocalyptic number.

18325442 is a deficient number, since it is larger than the sum of its proper divisors (9833290).

18325442 is a wasteful number, since it uses less digits than its factorization.

18325442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223524.

The product of its digits is 7680, while the sum is 29.

The square root of 18325442 is about 4280.8225845041. The cubic root of 18325442 is about 263.6441582461.

The spelling of 18325442 in words is "eighteen million, three hundred twenty-five thousand, four hundred forty-two".