2322581 has 6 divisors (see below), whose sum is σ = 2411190. Its totient is φ = 2234568.

The previous prime is 2322577. The next prime is 2322583. The reversal of 2322581 is 1852232.

It can be written as a sum of positive squares in only one way, i.e., 2002225 + 320356 = 1415^2 + 566^2 .

It is not a de Polignac number, because 2322581 - 2² = 2322577 is a prime.

It is a super-2 number, since 2×2322581² = 10788765003122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2322583) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8066 + ... + 8348.

It is an arithmetic number, because the mean of its divisors is an integer number (401865).

2^2322581 is an apocalyptic number.

It is an amenable number.

2322581 is a deficient number, since it is larger than the sum of its proper divisors (88609).

2322581 is an frugal number, since it uses more digits than its factorization.

2322581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 312 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 2322581 is about 1524.0016404191. The cubic root of 2322581 is about 132.4311924694.

The spelling of 2322581 in words is "two million, three hundred twenty-two thousand, five hundred eighty-one".