2188026 has 16 divisors (see below), whose sum is σ = 4862400. Its totient is φ = 729324.

The previous prime is 2188001. The next prime is 2188031. The reversal of 2188026 is 6208812.

2188026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam 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 in 7 ways as a sum of consecutive naturals, for example, 20206 + ... + 20313.

It is an arithmetic number, because the mean of its divisors is an integer number (303900).

2^2188026 is an apocalyptic number.

2188026 is an abundant number, since it is smaller than the sum of its proper divisors (2674374).

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

2188026 is a wasteful number, since it uses less digits than its factorization.

2188026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40530 (or 40524 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 2188026 is about 1479.1977555418. The cubic root of 2188026 is about 129.8227564816.

The spelling of 2188026 in words is "two million, one hundred eighty-eight thousand, twenty-six".