18200023 has 8 divisors (see below), whose sum is σ = 19288080. Its totient is φ = 17142720.

The previous prime is 18199999. The next prime is 18200033. The reversal of 18200023 is 32000281.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 18200023 - 2¹⁷ = 18068951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18200033) 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, 6465 + ... + 8842.

It is an arithmetic number, because the mean of its divisors is an integer number (2411010).

Almost surely, 2^18200023 is an apocalyptic number.

18200023 is a deficient number, since it is larger than the sum of its proper divisors (1088057).

18200023 is a wasteful number, since it uses less digits than its factorization.

18200023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15377.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 18200023 is about 4266.1484971810. The cubic root of 18200023 is about 263.0413222334.

The spelling of 18200023 in words is "eighteen million, two hundred thousand, twenty-three".