4404445213 has 24 divisors (see below), whose sum is σ = 5259091320. Its totient is φ = 3675732480.

The previous prime is 4404445207. The next prime is 4404445277. The reversal of 4404445213 is 3125444044.

It can be written as a sum of positive squares in 4 ways, for example, as 316377369 + 4088067844 = 17787^2 + 63938^2 .

It is not a de Polignac number, because 4404445213 - 2¹⁷ = 4404314141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4404445013) 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 23 ways as a sum of consecutive naturals, for example, 1141195 + ... + 1145047.

It is an arithmetic number, because the mean of its divisors is an integer number (219128805).

Almost surely, 2^4404445213 is an apocalyptic number.

It is an amenable number.

4404445213 is a deficient number, since it is larger than the sum of its proper divisors (854646107).

4404445213 is a wasteful number, since it uses less digits than its factorization.

4404445213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477 (or 4470 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 4404445213 is about 66365.9944022539. The cubic root of 4404445213 is about 1639.1941823766.

Adding to 4404445213 its reverse (3125444044), we get a palindrome (7529889257).

The spelling of 4404445213 in words is "four billion, four hundred four million, four hundred forty-five thousand, two hundred thirteen".