2279722 has 4 divisors (see below), whose sum is σ = 3419586. Its totient is φ = 1139860.

The previous prime is 2279707. The next prime is 2279741.

2279722 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1718721 + 561001 = 1311^2 + 749^2 .

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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569929 + ... + 569932.

2^2279722 is an apocalyptic number.

2279722 is a deficient number, since it is larger than the sum of its proper divisors (1139864).

2279722 is a wasteful number, since it uses less digits than its factorization.

2279722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139863.

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

The square root of 2279722 is about 1509.8748292491. The cubic root of 2279722 is about 131.6115377461.

The spelling of 2279722 in words is "two million, two hundred seventy-nine thousand, seven hundred twenty-two".