2205782 has 4 divisors (see below), whose sum is σ = 3308676. Its totient is φ = 1102890.

The previous prime is 2205779. The next prime is 2205787. The reversal of 2205782 is 2875022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2875022 = 2 ⋅1437511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551444 + ... + 551447.

It is an arithmetic number, because the mean of its divisors is an integer number (827169).

2^2205782 is an apocalyptic number.

2205782 is a deficient number, since it is larger than the sum of its proper divisors (1102894).

2205782 is a wasteful number, since it uses less digits than its factorization.

2205782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102893.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 2205782 is about 1485.1875302466. The cubic root of 2205782 is about 130.1729847057.

Adding to 2205782 its product of nonzero digits (2240), we get a palindrome (2208022).

The spelling of 2205782 in words is "two million, two hundred five thousand, seven hundred eighty-two".