2195722 has 4 divisors (see below), whose sum is σ = 3293586. Its totient is φ = 1097860.

The previous prime is 2195717. The next prime is 2195723. The reversal of 2195722 is 2275912.

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., 2187441 + 8281 = 1479^2 + 91^2 .

It is not an unprimeable number, because it can be changed into a prime (2195723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548929 + ... + 548932.

2^2195722 is an apocalyptic number.

2195722 is a deficient number, since it is larger than the sum of its proper divisors (1097864).

2195722 is a wasteful number, since it uses less digits than its factorization.

2195722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097863.

The product of its digits is 2520, while the sum is 28.

The square root of 2195722 is about 1481.7968821671. The cubic root of 2195722 is about 129.9747880102.

The spelling of 2195722 in words is "two million, one hundred ninety-five thousand, seven hundred twenty-two".