2206243 has 16 divisors (see below), whose sum is σ = 2570400. Its totient is φ = 1875456.

The previous prime is 2206219. The next prime is 2206247. The reversal of 2206243 is 3426022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2206243 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 2¹⁵ + 0 + 6⁶ + 2¹⁹ + 4² + 3¹³ .

2206243 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2206243.

It is not an unprimeable number, because it can be changed into a prime (2206247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14733 + ... + 14881.

It is an arithmetic number, because the mean of its divisors is an integer number (160650).

2^2206243 is an apocalyptic number.

2206243 is a deficient number, since it is larger than the sum of its proper divisors (364157).

2206243 is a wasteful number, since it uses less digits than its factorization.

2206243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2206243 is about 1485.3427213946. The cubic root of 2206243 is about 130.1820526259.

The spelling of 2206243 in words is "two million, two hundred six thousand, two hundred forty-three".