2772226 has 8 divisors (see below), whose sum is σ = 4301820. Its totient is φ = 1338288.

The previous prime is 2772199. The next prime is 2772227. The reversal of 2772226 is 6222772.

It is a Cunningham number, because it is equal to 1665²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 2772225 + 1 = 1665^2 + 1^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2772194 and 2772203.

It is not an unprimeable number, because it can be changed into a prime (2772227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23841 + ... + 23956.

2^2772226 is an apocalyptic number.

2772226 is a deficient number, since it is larger than the sum of its proper divisors (1529594).

2772226 is a wasteful number, since it uses less digits than its factorization.

2772226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47828.

The product of its digits is 4704, while the sum is 28.

The square root of 2772226 is about 1665.0003003003. Note that the first 3 decimals coincide. The cubic root of 2772226 is about 140.4783974081.

Adding to 2772226 its reverse (6222772), we get a palindrome (8994998).

The spelling of 2772226 in words is "two million, seven hundred seventy-two thousand, two hundred twenty-six".