2160722 has 8 divisors (see below), whose sum is σ = 3247356. Its totient is φ = 1078272.

The previous prime is 2160721. The next prime is 2160733. The reversal of 2160722 is 2270612.

It can be written as a sum of positive squares in 2 ways, for example, as 2128681 + 32041 = 1459^2 + 179^2 .

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

It is a super-2 number, since 2×2160722² = 9337439122568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2160694 and 2160703.

It is not an unprimeable number, because it can be changed into a prime (2160721) 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, 1298 + ... + 2450.

2^2160722 is an apocalyptic number.

2160722 is a deficient number, since it is larger than the sum of its proper divisors (1086634).

2160722 is a wasteful number, since it uses less digits than its factorization.

2160722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 2160722 is about 1469.9394545355. The cubic root of 2160722 is about 129.2804825923.

It can be divided in two parts, 2160 and 722, that added together give a palindrome (2882).

The spelling of 2160722 in words is "two million, one hundred sixty thousand, seven hundred twenty-two".