2239661774 has 16 divisors (see below), whose sum is σ = 3963273216. Its totient is φ = 928891800.

The previous prime is 2239661773. The next prime is 2239661779. The reversal of 2239661774 is 4771669322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239661773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2579822 + ... + 2580689.

It is an arithmetic number, because the mean of its divisors is an integer number (247704576).

Almost surely, 2^2239661774 is an apocalyptic number.

2239661774 is a deficient number, since it is larger than the sum of its proper divisors (1723611442).

2239661774 is a wasteful number, since it uses less digits than its factorization.

2239661774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5160551.

The product of its digits is 762048, while the sum is 47.

The square root of 2239661774 is about 47325.0649656184. The cubic root of 2239661774 is about 1308.3606660181.

The spelling of 2239661774 in words is "two billion, two hundred thirty-nine million, six hundred sixty-one thousand, seven hundred seventy-four".