44404040389 has 2 divisors, whose sum is σ = 44404040390. Its totient is φ = 44404040388.

The previous prime is 44404040377. The next prime is 44404040393. The reversal of 44404040389 is 98304040444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40557932100 + 3846108289 = 201390^2 + 62017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44404040389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44404040309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22202020194 + 22202020195.

It is an arithmetic number, because the mean of its divisors is an integer number (22202020195).

Almost surely, 2^44404040389 is an apocalyptic number.

It is an amenable number.

44404040389 is a deficient number, since it is larger than the sum of its proper divisors (1).

44404040389 is an equidigital number, since it uses as much as digits as its factorization.

44404040389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 44404040389 in words is "forty-four billion, four hundred four million, forty thousand, three hundred eighty-nine".