2244273457 has 4 divisors (see below), whose sum is σ = 2299011876. Its totient is φ = 2189535040.

The previous prime is 2244273433. The next prime is 2244273497. The reversal of 2244273457 is 7543724422.

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 628555041 + 1615718416 = 25071^2 + 40196^2 .

It is a cyclic number.

It is not a de Polignac number, because 2244273457 - 2³¹ = 96789809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2244273497) 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, 27369148 + ... + 27369229.

It is an arithmetic number, because the mean of its divisors is an integer number (574752969).

Almost surely, 2^2244273457 is an apocalyptic number.

It is an amenable number.

2244273457 is a deficient number, since it is larger than the sum of its proper divisors (54738419).

2244273457 is an equidigital number, since it uses as much as digits as its factorization.

2244273457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54738418.

The product of its digits is 376320, while the sum is 40.

The square root of 2244273457 is about 47373.7633822773. The cubic root of 2244273457 is about 1309.2580646172.

Adding to 2244273457 its reverse (7543724422), we get a palindrome (9787997879).

The spelling of 2244273457 in words is "two billion, two hundred forty-four million, two hundred seventy-three thousand, four hundred fifty-seven".