18828383 has 8 divisors (see below), whose sum is σ = 21572640. Its totient is φ = 16097760.

The previous prime is 18828371. The next prime is 18828391. The reversal of 18828383 is 38382881.

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

It is not a de Polignac number, because 18828383 - 2⁸ = 18828127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18828383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18828323) 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, 248 + ... + 6141.

It is an arithmetic number, because the mean of its divisors is an integer number (2696580).

Almost surely, 2^18828383 is an apocalyptic number.

18828383 is a deficient number, since it is larger than the sum of its proper divisors (2744257).

18828383 is an equidigital number, since it uses as much as digits as its factorization.

18828383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6817.

The product of its digits is 73728, while the sum is 41.

The square root of 18828383 is about 4339.1684687276. The cubic root of 18828383 is about 266.0343248147.

The spelling of 18828383 in words is "eighteen million, eight hundred twenty-eight thousand, three hundred eighty-three".