44163813 has 8 divisors (see below), whose sum is σ = 58921408. Its totient is φ = 29424384.

The previous prime is 44163811. The next prime is 44163827. The reversal of 44163813 is 31836144.

44163813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 44163813 - 2¹ = 44163811 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 (44163811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2856 + ... + 9822.

It is an arithmetic number, because the mean of its divisors is an integer number (7365176).

Almost surely, 2^44163813 is an apocalyptic number.

It is an amenable number.

44163813 is a deficient number, since it is larger than the sum of its proper divisors (14757595).

44163813 is a wasteful number, since it uses less digits than its factorization.

44163813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9083.

The product of its digits is 6912, while the sum is 30.

The square root of 44163813 is about 6645.5859786779. The cubic root of 44163813 is about 353.4724098484.

Adding to 44163813 its reverse (31836144), we get a palindrome (75999957).

The spelling of 44163813 in words is "forty-four million, one hundred sixty-three thousand, eight hundred thirteen".