18628323 has 16 divisors (see below), whose sum is σ = 28707840. Its totient is φ = 10524096.

The previous prime is 18628319. The next prime is 18628343. The reversal of 18628323 is 32382681.

It is not a de Polignac number, because 18628323 - 2² = 18628319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18628343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3115 + ... + 6852.

It is an arithmetic number, because the mean of its divisors is an integer number (1794240).

Almost surely, 2^18628323 is an apocalyptic number.

18628323 is a deficient number, since it is larger than the sum of its proper divisors (10079517).

18628323 is an equidigital number, since it uses as much as digits as its factorization.

18628323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10066.

The product of its digits is 13824, while the sum is 33.

The square root of 18628323 is about 4316.0541006804. The cubic root of 18628323 is about 265.0887231101.

It can be divided in two parts, 1862832 and 3, that multiplied together give a square (5588496 = 2364²).

The spelling of 18628323 in words is "eighteen million, six hundred twenty-eight thousand, three hundred twenty-three".