18882213 has 8 divisors (see below), whose sum is σ = 28772928. Its totient is φ = 10789824.

The previous prime is 18882197. The next prime is 18882217. The reversal of 18882213 is 31228881.

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

It is not a de Polignac number, because 18882213 - 2⁴ = 18882197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18882217) 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, 449556 + ... + 449597.

It is an arithmetic number, because the mean of its divisors is an integer number (3596616).

Almost surely, 2^18882213 is an apocalyptic number.

It is an amenable number.

18882213 is a deficient number, since it is larger than the sum of its proper divisors (9890715).

18882213 is an equidigital number, since it uses as much as digits as its factorization.

18882213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899163.

The product of its digits is 6144, while the sum is 33.

The square root of 18882213 is about 4345.3668429719. The cubic root of 18882213 is about 266.2876126633.

The spelling of 18882213 in words is "eighteen million, eight hundred eighty-two thousand, two hundred thirteen".