18422132 has 12 divisors (see below), whose sum is σ = 32302116. Its totient is φ = 9192960.

The previous prime is 18422123. The next prime is 18422147. The reversal of 18422132 is 23122481.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13868176 + 4553956 = 3724^2 + 2134^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18422098 and 18422107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2093 + ... + 6420.

It is an arithmetic number, because the mean of its divisors is an integer number (2691843).

Almost surely, 2^18422132 is an apocalyptic number.

It is an amenable number.

18422132 is a deficient number, since it is larger than the sum of its proper divisors (13879984).

18422132 is a wasteful number, since it uses less digits than its factorization.

18422132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9058 (or 9056 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 18422132 is about 4292.1011171686. The cubic root of 18422132 is about 264.1070311347.

The spelling of 18422132 in words is "eighteen million, four hundred twenty-two thousand, one hundred thirty-two".