18822043 has 8 divisors (see below), whose sum is σ = 20354112. Its totient is φ = 17337216.

The previous prime is 18821983. The next prime is 18822059. The reversal of 18822043 is 34022881.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18822043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18822143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10980 + ... + 12577.

It is an arithmetic number, because the mean of its divisors is an integer number (2544264).

Almost surely, 2^18822043 is an apocalyptic number.

18822043 is a deficient number, since it is larger than the sum of its proper divisors (1532069).

18822043 is a wasteful number, since it uses less digits than its factorization.

18822043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23621.

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

The square root of 18822043 is about 4338.4378524994. The cubic root of 18822043 is about 266.0044612665.

The spelling of 18822043 in words is "eighteen million, eight hundred twenty-two thousand, forty-three".