18361022 has 12 divisors (see below), whose sum is σ = 27913536. Its totient is φ = 9058140.

The previous prime is 18360997. The next prime is 18361051. The reversal of 18361022 is 22016381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11747 + ... + 13217.

It is an arithmetic number, because the mean of its divisors is an integer number (2326128).

Almost surely, 2^18361022 is an apocalyptic number.

18361022 is a deficient number, since it is larger than the sum of its proper divisors (9552514).

18361022 is an equidigital number, since it uses as much as digits as its factorization.

18361022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631 (or 1552 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 18361022 is about 4284.9763126533. The cubic root of 18361022 is about 263.8146751841.

The spelling of 18361022 in words is "eighteen million, three hundred sixty-one thousand, twenty-two".