2205242 has 16 divisors (see below), whose sum is σ = 3606120. Its totient is φ = 1005312.

The previous prime is 2205239. The next prime is 2205251. The reversal of 2205242 is 2425022.

It can be written as a sum of positive squares in 4 ways, for example, as 1079521 + 1125721 = 1039^2 + 1061^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2205242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1838 + ... + 2790.

2^2205242 is an apocalyptic number.

2205242 is a deficient number, since it is larger than the sum of its proper divisors (1400878).

2205242 is a wasteful number, since it uses less digits than its factorization.

2205242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2205242 is about 1485.0057238947. The cubic root of 2205242 is about 130.1623612399.

Subtracting from 2205242 its sum of digits (17), we obtain a square (2205225 = 1485²).

The spelling of 2205242 in words is "two million, two hundred five thousand, two hundred forty-two".