2784226 has 12 divisors (see below), whose sum is σ = 4437378. Its totient is φ = 1309952.

The previous prime is 2784217. The next prime is 2784227. The reversal of 2784226 is 6224872.

It can be written as a sum of positive squares in 3 ways, for example, as 2480625 + 303601 = 1575^2 + 551^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2784227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1831 + ... + 2986.

2^2784226 is an apocalyptic number.

2784226 is a deficient number, since it is larger than the sum of its proper divisors (1653152).

2784226 is a wasteful number, since it uses less digits than its factorization.

2784226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4853 (or 4836 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 2784226 is about 1668.6000119861. The cubic root of 2784226 is about 140.6807996501.

The spelling of 2784226 in words is "two million, seven hundred eighty-four thousand, two hundred twenty-six".