18826285 has 4 divisors (see below), whose sum is σ = 22591548. Its totient is φ = 15061024.

The previous prime is 18826279. The next prime is 18826333. The reversal of 18826285 is 58262881.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13995081 + 4831204 = 3741^2 + 2198^2 .

It is a cyclic number.

It is not a de Polignac number, because 18826285 - 2³ = 18826277 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1882624 + ... + 1882633.

It is an arithmetic number, because the mean of its divisors is an integer number (5647887).

Almost surely, 2^18826285 is an apocalyptic number.

It is an amenable number.

18826285 is a deficient number, since it is larger than the sum of its proper divisors (3765263).

18826285 is an equidigital number, since it uses as much as digits as its factorization.

18826285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765262.

The product of its digits is 61440, while the sum is 40.

The square root of 18826285 is about 4338.9267106048. The cubic root of 18826285 is about 266.0244432661.

The spelling of 18826285 in words is "eighteen million, eight hundred twenty-six thousand, two hundred eighty-five".