2242895581 has 4 divisors (see below), whose sum is σ = 2273620252. Its totient is φ = 2212170912.

The previous prime is 2242895573. The next prime is 2242895591. The reversal of 2242895581 is 1855982422.

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 422508025 + 1820387556 = 20555^2 + 42666^2 .

It is a cyclic number.

It is not a de Polignac number, because 2242895581 - 2³ = 2242895573 is a prime.

It is a super-2 number, since 2×2242895581² = 10061161174538655122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242895591) 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, 15362226 + ... + 15362371.

It is an arithmetic number, because the mean of its divisors is an integer number (568405063).

Almost surely, 2^2242895581 is an apocalyptic number.

It is an amenable number.

2242895581 is a deficient number, since it is larger than the sum of its proper divisors (30724671).

2242895581 is an equidigital number, since it uses as much as digits as its factorization.

2242895581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30724670.

The product of its digits is 460800, while the sum is 46.

The square root of 2242895581 is about 47359.2185429616. The cubic root of 2242895581 is about 1308.9900692630.

The spelling of 2242895581 in words is "two billion, two hundred forty-two million, eight hundred ninety-five thousand, five hundred eighty-one".