18122284 has 12 divisors (see below), whose sum is σ = 32116000. Its totient is φ = 8946288.

The previous prime is 18122243. The next prime is 18122309. The reversal of 18122284 is 48222181.

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, 28359 + ... + 28990.

Almost surely, 2^18122284 is an apocalyptic number.

It is an amenable number.

18122284 is a deficient number, since it is larger than the sum of its proper divisors (13993716).

18122284 is a wasteful number, since it uses less digits than its factorization.

18122284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57432 (or 57430 counting only the distinct ones).

The product of its digits is 2048, while the sum is 28.

The square root of 18122284 is about 4257.0276015079. The cubic root of 18122284 is about 262.6662722845. Note that the first 3 decimals are identical.

It can be divided in two parts, 1812 and 2284, that added together give a 12-th power (4096 = 2¹²).

The spelling of 18122284 in words is "eighteen million, one hundred twenty-two thousand, two hundred eighty-four".