18220083 has 8 divisors (see below), whose sum is σ = 27763968. Its totient is φ = 10411464.

The previous prime is 18220057. The next prime is 18220087. The reversal of 18220083 is 38002281.

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

It is not a de Polignac number, because 18220083 - 2⁵ = 18220051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18220087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433791 + ... + 433832.

It is an arithmetic number, because the mean of its divisors is an integer number (3470496).

Almost surely, 2^18220083 is an apocalyptic number.

18220083 is a deficient number, since it is larger than the sum of its proper divisors (9543885).

18220083 is an equidigital number, since it uses as much as digits as its factorization.

18220083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867633.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 18220083 is about 4268.4989164811. The cubic root of 18220083 is about 263.1379278163.

The spelling of 18220083 in words is "eighteen million, two hundred twenty thousand, eighty-three".