2291922 has 16 divisors (see below), whose sum is σ = 5093280. Its totient is φ = 763956.

The previous prime is 2291921. The next prime is 2291929.

2291922 is nontrivially palindromic in base 10.

2291922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2291921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21168 + ... + 21275.

It is an arithmetic number, because the mean of its divisors is an integer number (318330).

2^2291922 is an apocalyptic number.

2291922 is an abundant number, since it is smaller than the sum of its proper divisors (2801358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2291922 is a wasteful number, since it uses less digits than its factorization.

2291922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42454 (or 42448 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 2291922 is about 1513.9095085242. The cubic root of 2291922 is about 131.8458945373.

The spelling of 2291922 in words is "two million, two hundred ninety-one thousand, nine hundred twenty-two".