44168813 has 4 divisors (see below), whose sum is σ = 47566428. Its totient is φ = 40771200.

The previous prime is 44168797. The next prime is 44168843. The reversal of 44168813 is 31886144.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3247204 + 40921609 = 1802^2 + 6397^2 .

It is a cyclic number.

It is not a de Polignac number, because 44168813 - 2⁴ = 44168797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44168843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1698788 + ... + 1698813.

It is an arithmetic number, because the mean of its divisors is an integer number (11891607).

Almost surely, 2^44168813 is an apocalyptic number.

It is an amenable number.

44168813 is a deficient number, since it is larger than the sum of its proper divisors (3397615).

44168813 is a wasteful number, since it uses less digits than its factorization.

44168813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397614.

The product of its digits is 18432, while the sum is 35.

The square root of 44168813 is about 6645.9621575811. The cubic root of 44168813 is about 353.4857487885.

The spelling of 44168813 in words is "forty-four million, one hundred sixty-eight thousand, eight hundred thirteen".