44644489 has 2 divisors, whose sum is σ = 44644490. Its totient is φ = 44644488.

The previous prime is 44644477. The next prime is 44644507. The reversal of 44644489 is 98444644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41822089 + 2822400 = 6467^2 + 1680^2 .

It is a cyclic number.

It is not a de Polignac number, because 44644489 - 2¹¹ = 44642441 is a prime.

It is a super-2 number, since 2×44644489² = 3986260796142242, which contains 22 as substring.

It is equal to p_2697991 and since 44644489 and 2697991 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (44644409) 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, 22322244 + 22322245.

It is an arithmetic number, because the mean of its divisors is an integer number (22322245).

Almost surely, 2^44644489 is an apocalyptic number.

It is an amenable number.

44644489 is a deficient number, since it is larger than the sum of its proper divisors (1).

44644489 is an equidigital number, since it uses as much as digits as its factorization.

44644489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 442368, while the sum is 43.

The square root of 44644489 is about 6681.6531637013. The cubic root of 44644489 is about 354.7501753526.

The spelling of 44644489 in words is "forty-four million, six hundred forty-four thousand, four hundred eighty-nine".