18423084 has 24 divisors (see below), whose sum is σ = 45250240. Its totient is φ = 5817744.

The previous prime is 18423073. The next prime is 18423131. The reversal of 18423084 is 48032481.

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 7 ways as a sum of consecutive naturals, for example, 40174 + ... + 40629.

Almost surely, 2^18423084 is an apocalyptic number.

It is an amenable number.

18423084 is an abundant number, since it is smaller than the sum of its proper divisors (26827156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18423084 is a wasteful number, since it uses less digits than its factorization.

18423084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80829 (or 80827 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 18423084 is about 4292.2120171306. The cubic root of 18423084 is about 264.1115804735. Note that the first 3 decimals are identical.

The spelling of 18423084 in words is "eighteen million, four hundred twenty-three thousand, eighty-four".