22033818 has 24 divisors (see below), whose sum is σ = 47829600. Its totient is φ = 7330824.

The previous prime is 22033789. The next prime is 22033829. The reversal of 22033818 is 81833022.

It is a junction number, because it is equal to n+sod(n) for n = 22033791 and 22033800.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 14373 + ... + 15831.

It is an arithmetic number, because the mean of its divisors is an integer number (1992900).

Almost surely, 2^22033818 is an apocalyptic number.

22033818 is an abundant number, since it is smaller than the sum of its proper divisors (25795782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22033818 is a wasteful number, since it uses less digits than its factorization.

22033818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306 (or 2303 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 22033818 is about 4694.0193864108. The cubic root of 22033818 is about 280.3474343585.

The spelling of 22033818 in words is "twenty-two million, thirty-three thousand, eight hundred eighteen".