2188022 has 4 divisors (see below), whose sum is σ = 3282036. Its totient is φ = 1094010.

The previous prime is 2188001. The next prime is 2188031. The reversal of 2188022 is 2208812.

2188022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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 as a sum of consecutive naturals, namely, 547004 + ... + 547007.

It is an arithmetic number, because the mean of its divisors is an integer number (820509).

2^2188022 is an apocalyptic number.

2188022 is a deficient number, since it is larger than the sum of its proper divisors (1094014).

2188022 is a wasteful number, since it uses less digits than its factorization.

2188022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094013.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 2188022 is about 1479.1964034570. The cubic root of 2188022 is about 129.8226773705.

The spelling of 2188022 in words is "two million, one hundred eighty-eight thousand, twenty-two".