2220279 has 8 divisors (see below), whose sum is σ = 2967552. Its totient is φ = 1476600.

The previous prime is 2220277. The next prime is 2220289. The reversal of 2220279 is 9720222.

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

It is not a de Polignac number, because 2220279 - 2¹ = 2220277 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1354 + ... + 2504.

It is an arithmetic number, because the mean of its divisors is an integer number (370944).

2^2220279 is an apocalyptic number.

2220279 is a deficient number, since it is larger than the sum of its proper divisors (747273).

2220279 is a wasteful number, since it uses less digits than its factorization.

2220279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2220279 is about 1490.0600659034. The cubic root of 2220279 is about 130.4575396574.

It can be divided in two parts, 22 and 20279, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 2220279 in words is "two million, two hundred twenty thousand, two hundred seventy-nine".