18873322 has 8 divisors (see below), whose sum is σ = 30487716. Its totient is φ = 8710752.

The previous prime is 18873319. The next prime is 18873329. The reversal of 18873322 is 22337881.

It can be written as a sum of positive squares in 2 ways, for example, as 16966161 + 1907161 = 4119^2 + 1381^2 .

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

It is not an unprimeable number, because it can be changed into a prime (18873329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362923 + ... + 362974.

Almost surely, 2^18873322 is an apocalyptic number.

18873322 is a deficient number, since it is larger than the sum of its proper divisors (11614394).

18873322 is a wasteful number, since it uses less digits than its factorization.

18873322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725912.

The product of its digits is 16128, while the sum is 34.

The square root of 18873322 is about 4344.3436788541. The cubic root of 18873322 is about 266.2458108035.

The spelling of 18873322 in words is "eighteen million, eight hundred seventy-three thousand, three hundred twenty-two".