18802223 has 16 divisors (see below), whose sum is σ = 21221376. Its totient is φ = 16511040.

The previous prime is 18802207. The next prime is 18802279. The reversal of 18802223 is 32220881.

It is a cyclic number.

It is not a de Polignac number, because 18802223 - 2⁴ = 18802207 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 18802192 and 18802201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18802123) 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, 59915 + ... + 60227.

It is an arithmetic number, because the mean of its divisors is an integer number (1326336).

Almost surely, 2^18802223 is an apocalyptic number.

18802223 is a deficient number, since it is larger than the sum of its proper divisors (2419153).

18802223 is a wasteful number, since it uses less digits than its factorization.

18802223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 18802223 is about 4336.1530185177. The cubic root of 18802223 is about 265.9110590769.

The spelling of 18802223 in words is "eighteen million, eight hundred two thousand, two hundred twenty-three".