18222033 has 4 divisors (see below), whose sum is σ = 24296048. Its totient is φ = 12148020.

The previous prime is 18222031. The next prime is 18222037. The reversal of 18222033 is 33022281.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 18222033 - 2¹ = 18222031 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18222031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3037003 + ... + 3037008.

It is an arithmetic number, because the mean of its divisors is an integer number (6074012).

Almost surely, 2^18222033 is an apocalyptic number.

It is an amenable number.

18222033 is a deficient number, since it is larger than the sum of its proper divisors (6074015).

18222033 is an equidigital number, since it uses as much as digits as its factorization.

18222033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6074014.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 18222033 is about 4268.7273279047. The cubic root of 18222033 is about 263.1473149059.

The spelling of 18222033 in words is "eighteen million, two hundred twenty-two thousand, thirty-three".