18752223 has 16 divisors (see below), whose sum is σ = 28638720. Its totient is φ = 10691616.

The previous prime is 18752191. The next prime is 18752231. The reversal of 18752223 is 32225781.

It is not a de Polignac number, because 18752223 - 2⁵ = 18752191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18752323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13558 + ... + 14876.

It is an arithmetic number, because the mean of its divisors is an integer number (1789920).

Almost surely, 2^18752223 is an apocalyptic number.

18752223 is a deficient number, since it is larger than the sum of its proper divisors (9886497).

18752223 is a wasteful number, since it uses less digits than its factorization.

18752223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006.

The product of its digits is 6720, while the sum is 30.

The square root of 18752223 is about 4330.3837012440. The cubic root of 18752223 is about 265.6751409474.

The spelling of 18752223 in words is "eighteen million, seven hundred fifty-two thousand, two hundred twenty-three".