442044013973 has 2 divisors, whose sum is σ = 442044013974. Its totient is φ = 442044013972.

The previous prime is 442044013909. The next prime is 442044014029. The reversal of 442044013973 is 379310440244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312103230244 + 129940783729 = 558662^2 + 360473^2 .

It is a cyclic number.

It is not a de Polignac number, because 442044013973 - 2⁶ = 442044013909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442044013973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442044033973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221022006986 + 221022006987.

It is an arithmetic number, because the mean of its divisors is an integer number (221022006987).

Almost surely, 2^442044013973 is an apocalyptic number.

It is an amenable number.

442044013973 is a deficient number, since it is larger than the sum of its proper divisors (1).

442044013973 is an equidigital number, since it uses as much as digits as its factorization.

442044013973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 442044013973 in words is "four hundred forty-two billion, forty-four million, thirteen thousand, nine hundred seventy-three".