44286821 has 2 divisors, whose sum is σ = 44286822. Its totient is φ = 44286820.

The previous prime is 44286811. The next prime is 44286839. The reversal of 44286821 is 12868244.

44286821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28206721 + 16080100 = 5311^2 + 4010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44286821 is a prime.

It is a super-2 number, since 2×44286821² = 3922645028572082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44286811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22143410 + 22143411.

It is an arithmetic number, because the mean of its divisors is an integer number (22143411).

Almost surely, 2^44286821 is an apocalyptic number.

It is an amenable number.

44286821 is a deficient number, since it is larger than the sum of its proper divisors (1).

44286821 is an equidigital number, since it uses as much as digits as its factorization.

44286821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24576, while the sum is 35.

The square root of 44286821 is about 6654.8344081577. The cubic root of 44286821 is about 353.8002772875.

The spelling of 44286821 in words is "forty-four million, two hundred eighty-six thousand, eight hundred twenty-one".