2782222 has 8 divisors (see below), whose sum is σ = 4226400. Its totient is φ = 1373424.

The previous prime is 2782217. The next prime is 2782279. The reversal of 2782222 is 2222872.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2782222 is a modest number, since divided by 2222 gives 278 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8647 + ... + 8962.

It is an arithmetic number, because the mean of its divisors is an integer number (528300).

2^2782222 is an apocalyptic number.

2782222 is a deficient number, since it is larger than the sum of its proper divisors (1444178).

2782222 is a wasteful number, since it uses less digits than its factorization.

2782222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17690.

The product of its digits is 1792, while the sum is 25.

The square root of 2782222 is about 1667.9994004795. Note that the first 3 decimals coincide. The cubic root of 2782222 is about 140.6470389820.

It can be divided in two parts, 278 and 2222, that multiplied together give a palindrome (617716).

The spelling of 2782222 in words is "two million, seven hundred eighty-two thousand, two hundred twenty-two".