44005013 has 8 divisors (see below), whose sum is σ = 48546456. Its totient is φ = 39628800.

The previous prime is 44004971. The next prime is 44005043. The reversal of 44005013 is 31050044.

It can be written as a sum of positive squares in 4 ways, for example, as 418609 + 43586404 = 647^2 + 6602^2 .

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 44005013 - 2⁸ = 44004757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44004982 and 44005000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44005043) 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, 40748 + ... + 41813.

It is an arithmetic number, because the mean of its divisors is an integer number (6068307).

Almost surely, 2^44005013 is an apocalyptic number.

It is an amenable number.

44005013 is a deficient number, since it is larger than the sum of its proper divisors (4541443).

44005013 is a wasteful number, since it uses less digits than its factorization.

44005013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82615.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 44005013 is about 6633.6274390412. The cubic root of 44005013 is about 353.0482403236.

Adding to 44005013 its reverse (31050044), we get a palindrome (75055057).

The spelling of 44005013 in words is "forty-four million, five thousand, thirteen".