18222835 has 8 divisors (see below), whose sum is σ = 22226256. Its totient is φ = 14339040.

The previous prime is 18222829. The next prime is 18222859. The reversal of 18222835 is 53822281.

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

It is not a de Polignac number, because 18222835 - 2⁵ = 18222803 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18222797 and 18222806.

It is an unprimeable number.

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, 29569 + ... + 30178.

It is an arithmetic number, because the mean of its divisors is an integer number (2778282).

Almost surely, 2^18222835 is an apocalyptic number.

18222835 is a deficient number, since it is larger than the sum of its proper divisors (4003421).

18222835 is an equidigital number, since it uses as much as digits as its factorization.

18222835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59813.

The product of its digits is 7680, while the sum is 31.

The square root of 18222835 is about 4268.8212658766. The cubic root of 18222835 is about 263.1511754530.

The spelling of 18222835 in words is "eighteen million, two hundred twenty-two thousand, eight hundred thirty-five".