2206390 has 32 divisors (see below), whose sum is σ = 4245696. Its totient is φ = 823680.

The previous prime is 2206387. The next prime is 2206403. The reversal of 2206390 is 936022.

2206390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 15 ways as a sum of consecutive naturals, for example, 12100 + ... + 12280.

It is an arithmetic number, because the mean of its divisors is an integer number (132678).

2^2206390 is an apocalyptic number.

2206390 is a deficient number, since it is larger than the sum of its proper divisors (2039306).

2206390 is a wasteful number, since it uses less digits than its factorization.

2206390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2206390 is about 1485.3922040996. The cubic root of 2206390 is about 130.1849438663.

The spelling of 2206390 in words is "two million, two hundred six thousand, three hundred ninety".