44299681 has 2 divisors, whose sum is σ = 44299682. Its totient is φ = 44299680.

The previous prime is 44299657. The next prime is 44299691. The reversal of 44299681 is 18699244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43349056 + 950625 = 6584^2 + 975^2 .

It is a cyclic number.

It is not a de Polignac number, because 44299681 - 2⁵ = 44299649 is a prime.

It is a super-2 number, since 2×44299681² = 3924923473403522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44299601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22149840 + 22149841.

It is an arithmetic number, because the mean of its divisors is an integer number (22149841).

Almost surely, 2^44299681 is an apocalyptic number.

It is an amenable number.

44299681 is a deficient number, since it is larger than the sum of its proper divisors (1).

44299681 is an equidigital number, since it uses as much as digits as its factorization.

44299681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 44299681 is about 6655.8005529012. The cubic root of 44299681 is about 353.8345194626.

The spelling of 44299681 in words is "forty-four million, two hundred ninety-nine thousand, six hundred eighty-one".