44075813 has 2 divisors, whose sum is σ = 44075814. Its totient is φ = 44075812.

The previous prime is 44075803. The next prime is 44075819. The reversal of 44075813 is 31857044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44063044 + 12769 = 6638^2 + 113^2 .

It is a cyclic number.

It is not a de Polignac number, because 44075813 - 2⁸ = 44075557 is a prime.

It is a super-2 number, since 2×44075813² = 3885354583221938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44075813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44075819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22037906 + 22037907.

It is an arithmetic number, because the mean of its divisors is an integer number (22037907).

Almost surely, 2^44075813 is an apocalyptic number.

It is an amenable number.

44075813 is a deficient number, since it is larger than the sum of its proper divisors (1).

44075813 is an equidigital number, since it uses as much as digits as its factorization.

44075813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 44075813 is about 6638.9617411159. The cubic root of 44075813 is about 353.2374795365.

The spelling of 44075813 in words is "forty-four million, seventy-five thousand, eight hundred thirteen".