2244473281 has 4 divisors (see below), whose sum is σ = 2245292500. Its totient is φ = 2243654064.

The previous prime is 2244473261. The next prime is 2244473293. The reversal of 2244473281 is 1823744422.

2244473281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 100320256 + 2144153025 = 10016^2 + 46305^2 .

It is a cyclic number.

It is not a de Polignac number, because 2244473281 - 2¹¹ = 2244471233 is a prime.

It is a super-2 number, since 2×2244473281² = 10075320618245809922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2244473281.

It is not an unprimeable number, because it can be changed into a prime (2244473201) 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, 405486 + ... + 410983.

It is an arithmetic number, because the mean of its divisors is an integer number (561323125).

Almost surely, 2^2244473281 is an apocalyptic number.

It is an amenable number.

2244473281 is a deficient number, since it is larger than the sum of its proper divisors (819219).

2244473281 is an equidigital number, since it uses as much as digits as its factorization.

2244473281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819218.

The product of its digits is 86016, while the sum is 37.

The square root of 2244473281 is about 47375.8723508074. The cubic root of 2244473281 is about 1309.2969210555.

The spelling of 2244473281 in words is "two billion, two hundred forty-four million, four hundred seventy-three thousand, two hundred eighty-one".