18422605 has 8 divisors (see below), whose sum is σ = 22240512. Its totient is φ = 14649168.

The previous prime is 18422567. The next prime is 18422617. The reversal of 18422605 is 50622481.

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

It is a cyclic number.

It is not a de Polignac number, because 18422605 - 2⁹ = 18422093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10197 + ... + 11866.

It is an arithmetic number, because the mean of its divisors is an integer number (2780064).

Almost surely, 2^18422605 is an apocalyptic number.

It is an amenable number.

18422605 is a deficient number, since it is larger than the sum of its proper divisors (3817907).

18422605 is a wasteful number, since it uses less digits than its factorization.

18422605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22235.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 18422605 is about 4292.1562180331. The cubic root of 18422605 is about 264.1092914875.

The spelling of 18422605 in words is "eighteen million, four hundred twenty-two thousand, six hundred five".