18423075 has 48 divisors (see below), whose sum is σ = 33676416. Its totient is φ = 8812800.

The previous prime is 18423073. The next prime is 18423131. The reversal of 18423075 is 57032481.

It is not a de Polignac number, because 18423075 - 2¹ = 18423073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18423073) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 112944 + ... + 113106.

It is an arithmetic number, because the mean of its divisors is an integer number (701592).

Almost surely, 2^18423075 is an apocalyptic number.

18423075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18423075 is a deficient number, since it is larger than the sum of its proper divisors (15253341).

18423075 is a wasteful number, since it uses less digits than its factorization.

18423075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 18423075 is about 4292.2109687200. The cubic root of 18423075 is about 264.1115374658. Note that the first 3 decimals are identical.

The spelling of 18423075 in words is "eighteen million, four hundred twenty-three thousand, seventy-five".