44398439 has 2 divisors, whose sum is σ = 44398440. Its totient is φ = 44398438.

The previous prime is 44398433. The next prime is 44398447. The reversal of 44398439 is 93489344.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44398439 - 2⁸ = 44398183 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44398439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44398433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22199219 + 22199220.

It is an arithmetic number, because the mean of its divisors is an integer number (22199220).

Almost surely, 2^44398439 is an apocalyptic number.

44398439 is a deficient number, since it is larger than the sum of its proper divisors (1).

44398439 is an equidigital number, since it uses as much as digits as its factorization.

44398439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 44.

The square root of 44398439 is about 6663.2153649721. The cubic root of 44398439 is about 354.0972606662.

The spelling of 44398439 in words is "forty-four million, three hundred ninety-eight thousand, four hundred thirty-nine".