2243657899 has 8 divisors (see below), whose sum is σ = 2566526688. Its totient is φ = 1921375680.

The previous prime is 2243657893. The next prime is 2243657903. The reversal of 2243657899 is 9987563422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2243657899 - 2⁷ = 2243657771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243657893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138412 + ... + 153769.

It is an arithmetic number, because the mean of its divisors is an integer number (320815836).

Almost surely, 2^2243657899 is an apocalyptic number.

2243657899 is a deficient number, since it is larger than the sum of its proper divisors (322868789).

2243657899 is a wasteful number, since it uses less digits than its factorization.

2243657899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293285.

The product of its digits is 6531840, while the sum is 55.

The square root of 2243657899 is about 47367.2661127914. The cubic root of 2243657899 is about 1309.1383528285.

It can be divided in two parts, 22436578 and 99, that multiplied together give a palindrome (2221221222).

The spelling of 2243657899 in words is "two billion, two hundred forty-three million, six hundred fifty-seven thousand, eight hundred ninety-nine".