18802214 has 4 divisors (see below), whose sum is σ = 28203324. Its totient is φ = 9401106.

The previous prime is 18802207. The next prime is 18802279. The reversal of 18802214 is 41220881.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4700552 + ... + 4700555.

It is an arithmetic number, because the mean of its divisors is an integer number (7050831).

Almost surely, 2^18802214 is an apocalyptic number.

18802214 is a deficient number, since it is larger than the sum of its proper divisors (9401110).

18802214 is an equidigital number, since it uses as much as digits as its factorization.

18802214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9401109.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 18802214 is about 4336.1519807313. The cubic root of 18802214 is about 265.9110166493.

The spelling of 18802214 in words is "eighteen million, eight hundred two thousand, two hundred fourteen".