44216729 has 2 divisors, whose sum is σ = 44216730. Its totient is φ = 44216728.

The previous prime is 44216719. The next prime is 44216747. The reversal of 44216729 is 92761244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36626704 + 7590025 = 6052^2 + 2755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44216729 is a prime.

It is not a weakly prime, because it can be changed into another prime (44216719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22108364 + 22108365.

It is an arithmetic number, because the mean of its divisors is an integer number (22108365).

Almost surely, 2^44216729 is an apocalyptic number.

It is an amenable number.

44216729 is a deficient number, since it is larger than the sum of its proper divisors (1).

44216729 is an equidigital number, since it uses as much as digits as its factorization.

44216729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 44216729 is about 6649.5660760684. The cubic root of 44216729 is about 353.6135274994.

It can be divided in two parts, 442 and 16729, that added together give a palindrome (17171).

The spelling of 44216729 in words is "forty-four million, two hundred sixteen thousand, seven hundred twenty-nine".