18361622 has 12 divisors (see below), whose sum is σ = 27848940. Its totient is φ = 9079296.

The previous prime is 18361601. The next prime is 18361627. The reversal of 18361622 is 22616381.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18361627) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71318 + ... + 71574.

It is an arithmetic number, because the mean of its divisors is an integer number (2320745).

Almost surely, 2^18361622 is an apocalyptic number.

18361622 is a deficient number, since it is larger than the sum of its proper divisors (9487318).

18361622 is an equidigital number, since it uses as much as digits as its factorization.

18361622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 398 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 18361622 is about 4285.0463241370. The cubic root of 18361622 is about 263.8175487911.

The spelling of 18361622 in words is "eighteen million, three hundred sixty-one thousand, six hundred twenty-two".