44401999 has 2 divisors, whose sum is σ = 44402000. Its totient is φ = 44401998.

The previous prime is 44401997. The next prime is 44402009. The reversal of 44401999 is 99910444.

44401999 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 is a cyclic number.

It is not a de Polignac number, because 44401999 - 2¹ = 44401997 is a prime.

Together with 44401997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44401991) 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, 22200999 + 22201000.

It is an arithmetic number, because the mean of its divisors is an integer number (22201000).

Almost surely, 2^44401999 is an apocalyptic number.

44401999 is a deficient number, since it is larger than the sum of its proper divisors (1).

44401999 is an equidigital number, since it uses as much as digits as its factorization.

44401999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 44401999 is about 6663.4824979135. The cubic root of 44401999 is about 354.1067246067.

The spelling of 44401999 in words is "forty-four million, four hundred one thousand, nine hundred ninety-nine".