18336022 has 4 divisors (see below), whose sum is σ = 27504036. Its totient is φ = 9168010.

The previous prime is 18336011. The next prime is 18336023. The reversal of 18336022 is 22063381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22063381 = 1601 ⋅13781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18336023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4584004 + ... + 4584007.

It is an arithmetic number, because the mean of its divisors is an integer number (6876009).

Almost surely, 2^18336022 is an apocalyptic number.

18336022 is a deficient number, since it is larger than the sum of its proper divisors (9168014).

18336022 is an equidigital number, since it uses as much as digits as its factorization.

18336022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9168013.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 18336022 is about 4282.0581500022. The cubic root of 18336022 is about 263.6948858732.

The spelling of 18336022 in words is "eighteen million, three hundred thirty-six thousand, twenty-two".