18445322 has 8 divisors (see below), whose sum is σ = 31620576. Its totient is φ = 7905132.

The previous prime is 18445319. The next prime is 18445331. The reversal of 18445322 is 22354481.

It is a happy number.

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, 658748 + ... + 658775.

It is an arithmetic number, because the mean of its divisors is an integer number (3952572).

Almost surely, 2^18445322 is an apocalyptic number.

18445322 is a deficient number, since it is larger than the sum of its proper divisors (13175254).

18445322 is a wasteful number, since it uses less digits than its factorization.

18445322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317532.

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

The square root of 18445322 is about 4294.8017416407. The cubic root of 18445322 is about 264.2178050292.

The spelling of 18445322 in words is "eighteen million, four hundred forty-five thousand, three hundred twenty-two".