2044723213 has 8 divisors (see below), whose sum is σ = 2277941400. Its totient is φ = 1822352448.

The previous prime is 2044723189. The next prime is 2044723273. The reversal of 2044723213 is 3123274402.

It can be written as a sum of positive squares in 4 ways, for example, as 258984649 + 1785738564 = 16093^2 + 42258^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2044723213 - 2¹³ = 2044715021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044723273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2711458 + ... + 2712211.

It is an arithmetic number, because the mean of its divisors is an integer number (284742675).

Almost surely, 2^2044723213 is an apocalyptic number.

It is an amenable number.

2044723213 is a deficient number, since it is larger than the sum of its proper divisors (233218187).

2044723213 is a wasteful number, since it uses less digits than its factorization.

2044723213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5423711.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 2044723213 is about 45218.6157793447. The cubic root of 2044723213 is about 1269.2431916056.

Adding to 2044723213 its reverse (3123274402), we get a palindrome (5167997615).

It can be divided in two parts, 20447 and 23213, that added together give a triangular number (43660 = T₂₉₅).

The spelling of 2044723213 in words is "two billion, forty-four million, seven hundred twenty-three thousand, two hundred thirteen".