2243722 has 8 divisors (see below), whose sum is σ = 3624516. Its totient is φ = 1035552.

The previous prime is 2243699. The next prime is 2243723. The reversal of 2243722 is 2273422.

It can be written as a sum of positive squares in 2 ways, for example, as 1766241 + 477481 = 1329^2 + 691^2 .

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 = 2243693 and 2243702.

It is not an unprimeable number, because it can be changed into a prime (2243723) 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, 43123 + ... + 43174.

2^2243722 is an apocalyptic number.

2243722 is a deficient number, since it is larger than the sum of its proper divisors (1380794).

2243722 is a wasteful number, since it uses less digits than its factorization.

2243722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86312.

The product of its digits is 1344, while the sum is 22.

The square root of 2243722 is about 1497.9058715420. The cubic root of 2243722 is about 130.9150820011.

The spelling of 2243722 in words is "two million, two hundred forty-three thousand, seven hundred twenty-two".