44543813 has 2 divisors, whose sum is σ = 44543814. Its totient is φ = 44543812.

The previous prime is 44543803. The next prime is 44543857. The reversal of 44543813 is 31834544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44528929 + 14884 = 6673^2 + 122^2 .

It is a cyclic number.

It is not a de Polignac number, because 44543813 - 2⁶ = 44543749 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 44543813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44543803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22271906 + 22271907.

It is an arithmetic number, because the mean of its divisors is an integer number (22271907).

Almost surely, 2^44543813 is an apocalyptic number.

It is an amenable number.

44543813 is a deficient number, since it is larger than the sum of its proper divisors (1).

44543813 is an equidigital number, since it uses as much as digits as its factorization.

44543813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 32.

The square root of 44543813 is about 6674.1151473435. The cubic root of 44543813 is about 354.4833136824.

The spelling of 44543813 in words is "forty-four million, five hundred forty-three thousand, eight hundred thirteen".