2731222 has 16 divisors (see below), whose sum is σ = 4475520. Its totient is φ = 1242432.

The previous prime is 2731207. The next prime is 2731241. The reversal of 2731222 is 2221372.

It is a super-2 number, since 2×2731222² = 14919147226568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2731222.

It is a congruent 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, 1179 + ... + 2617.

It is an arithmetic number, because the mean of its divisors is an integer number (279720).

2^2731222 is an apocalyptic number.

2731222 is a deficient number, since it is larger than the sum of its proper divisors (1744298).

2731222 is a wasteful number, since it uses less digits than its factorization.

2731222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527.

The product of its digits is 336, while the sum is 19.

The square root of 2731222 is about 1652.6409168358. The cubic root of 2731222 is about 139.7823488787.

Adding to 2731222 its reverse (2221372), we get a palindrome (4952594).

The spelling of 2731222 in words is "two million, seven hundred thirty-one thousand, two hundred twenty-two".