18422955 has 24 divisors (see below), whose sum is σ = 32224608. Its totient is φ = 9735936.

The previous prime is 18422953. The next prime is 18422969. The reversal of 18422955 is 55922481.

It is not a de Polignac number, because 18422955 - 2¹ = 18422953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18422953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3274 + ... + 6896.

It is an arithmetic number, because the mean of its divisors is an integer number (1342692).

Almost surely, 2^18422955 is an apocalyptic number.

18422955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18422955 is a deficient number, since it is larger than the sum of its proper divisors (13801653).

18422955 is a wasteful number, since it uses less digits than its factorization.

18422955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747 (or 3744 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 18422955 is about 4292.1969898876. The cubic root of 18422955 is about 264.1109640282.

The spelling of 18422955 in words is "eighteen million, four hundred twenty-two thousand, nine hundred fifty-five".