18620323 has 8 divisors (see below), whose sum is σ = 19641600. Its totient is φ = 17603208.

The previous prime is 18620297. The next prime is 18620339. The reversal of 18620323 is 32302681.

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-18620323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18620353) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13458 + ... + 14776.

It is an arithmetic number, because the mean of its divisors is an integer number (2455200).

Almost surely, 2^18620323 is an apocalyptic number.

18620323 is a deficient number, since it is larger than the sum of its proper divisors (1021277).

18620323 is a wasteful number, since it uses less digits than its factorization.

18620323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 18620323 is about 4315.1272287153. The cubic root of 18620323 is about 265.0507699095.

The spelling of 18620323 in words is "eighteen million, six hundred twenty thousand, three hundred twenty-three".