44063681 has 2 divisors, whose sum is σ = 44063682. Its totient is φ = 44063680.

The previous prime is 44063659. The next prime is 44063687. The reversal of 44063681 is 18636044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43890625 + 173056 = 6625^2 + 416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44063681 is a prime.

It is a super-2 number, since 2×44063681² = 3883215966539522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (44063687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22031840 + 22031841.

It is an arithmetic number, because the mean of its divisors is an integer number (22031841).

Almost surely, 2^44063681 is an apocalyptic number.

It is an amenable number.

44063681 is a deficient number, since it is larger than the sum of its proper divisors (1).

44063681 is an equidigital number, since it uses as much as digits as its factorization.

44063681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 44063681 is about 6638.0479811463. The cubic root of 44063681 is about 353.2050666697.

It can be divided in two parts, 44063 and 681, that added together give a palindrome (44744).

The spelling of 44063681 in words is "forty-four million, sixty-three thousand, six hundred eighty-one".