2788226 has 16 divisors (see below), whose sum is σ = 4842240. Its totient is φ = 1179360.

The previous prime is 2788217. The next prime is 2788273. The reversal of 2788226 is 6228872.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

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, 155 + ... + 2366.

It is an arithmetic number, because the mean of its divisors is an integer number (302640).

2^2788226 is an apocalyptic number.

2788226 is a deficient number, since it is larger than the sum of its proper divisors (2054014).

2788226 is a wasteful number, since it uses less digits than its factorization.

2788226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609.

The product of its digits is 21504, while the sum is 35.

The square root of 2788226 is about 1669.7981913992. The cubic root of 2788226 is about 140.7481378059.

The spelling of 2788226 in words is "two million, seven hundred eighty-eight thousand, two hundred twenty-six".