18823042 has 8 divisors (see below), whose sum is σ = 32268096. Its totient is φ = 8067012.

The previous prime is 18823031. The next prime is 18823073. The reversal of 18823042 is 24032881.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18823042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672238 + ... + 672265.

It is an arithmetic number, because the mean of its divisors is an integer number (4033512).

Almost surely, 2^18823042 is an apocalyptic number.

18823042 is a deficient number, since it is larger than the sum of its proper divisors (13445054).

18823042 is a wasteful number, since it uses less digits than its factorization.

18823042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344512.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 18823042 is about 4338.5529845791. The cubic root of 18823042 is about 266.0091673400.

The spelling of 18823042 in words is "eighteen million, eight hundred twenty-three thousand, forty-two".