2272279 has 4 divisors (see below), whose sum is σ = 2275776. Its totient is φ = 2268784.

The previous prime is 2272273. The next prime is 2272297. The reversal of 2272279 is 9722722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9722722 = 2 ⋅4861361.

It is a cyclic number.

It is not a de Polignac number, because 2272279 - 2⁹ = 2271767 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2272279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272273) 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, 454 + ... + 2179.

It is an arithmetic number, because the mean of its divisors is an integer number (568944).

2^2272279 is an apocalyptic number.

2272279 is a deficient number, since it is larger than the sum of its proper divisors (3497).

2272279 is an equidigital number, since it uses as much as digits as its factorization.

2272279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3496.

The product of its digits is 7056, while the sum is 31.

The square root of 2272279 is about 1507.4080403129. The cubic root of 2272279 is about 131.4681499871.

It can be divided in two parts, 22722 and 79, that added together give a square (22801 = 151²).

The spelling of 2272279 in words is "two million, two hundred seventy-two thousand, two hundred seventy-nine".