4399999973 has 16 divisors (see below), whose sum is σ = 4704860160. Its totient is φ = 4105718400.

The previous prime is 4399999969. The next prime is 4399999991. The reversal of 4399999973 is 3799999934.

4399999973 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4399999973 - 2² = 4399999969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4399999897 and 4399999906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4399999943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767588 + ... + 773298.

It is an arithmetic number, because the mean of its divisors is an integer number (294053760).

Almost surely, 2^4399999973 is an apocalyptic number.

It is an amenable number.

4399999973 is a deficient number, since it is larger than the sum of its proper divisors (304860187).

4399999973 is a wasteful number, since it uses less digits than its factorization.

4399999973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6628.

The product of its digits is 133923132, while the sum is 71.

The square root of 4399999973 is about 66332.4956035878. The cubic root of 4399999973 is about 1638.6425378495.

Adding to 4399999973 its sum of digits (71), we get a palindrome (4400000044).

The spelling of 4399999973 in words is "four billion, three hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred seventy-three".