2291941 has 4 divisors (see below), whose sum is σ = 2347884. Its totient is φ = 2236000.

The previous prime is 2291929. The next prime is 2291959. The reversal of 2291941 is 1491922.

2291941 = 125² + 126² + ... + 206².

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1147041 + 1144900 = 1071^2 + 1070^2 .

It is a cyclic number.

It is not a de Polignac number, because 2291941 - 2⁵ = 2291909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291911) 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, 27910 + ... + 27991.

It is an arithmetic number, because the mean of its divisors is an integer number (586971).

2^2291941 is an apocalyptic number.

2291941 is the 1071-st centered square number.

It is an amenable number.

2291941 is a deficient number, since it is larger than the sum of its proper divisors (55943).

2291941 is an equidigital number, since it uses as much as digits as its factorization.

2291941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55942.

The product of its digits is 1296, while the sum is 28.

The square root of 2291941 is about 1513.9157836551. The cubic root of 2291941 is about 131.8462588699.

The spelling of 2291941 in words is "two million, two hundred ninety-one thousand, nine hundred forty-one".