44013 has 8 divisors (see below), whose sum is σ = 62208. Its totient is φ = 27584.

The previous prime is 43997. The next prime is 44017. The reversal of 44013 is 31044.

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 44013 - 2⁴ = 43997 is a prime.

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 44013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44017) 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, 381 + ... + 482.

It is an arithmetic number, because the mean of its divisors is an integer number (7776).

2⁴⁴⁰¹³ is an apocalyptic number.

It is an amenable number.

44013 is a deficient number, since it is larger than the sum of its proper divisors (18195).

44013 is a wasteful number, since it uses less digits than its factorization.

44013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 44013 is about 209.7927548797. The cubic root of 44013 is about 35.3069598691.

Adding to 44013 its reverse (31044), we get a palindrome (75057).

It can be divided in two parts, 4401 and 3, that multiplied together give a triangular number (13203 = T₁₆₂).

The spelling of 44013 in words is "forty-four thousand, thirteen".