4442005457 has 2 divisors, whose sum is σ = 4442005458. Its totient is φ = 4442005456.

The previous prime is 4442005427. The next prime is 4442005481. The reversal of 4442005457 is 7545002444.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3446981521 + 995023936 = 58711^2 + 31544^2 .

It is a cyclic number.

It is not a de Polignac number, because 4442005457 - 2⁸ = 4442005201 is a prime.

It is not a weakly prime, because it can be changed into another prime (4442005427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2221002728 + 2221002729.

It is an arithmetic number, because the mean of its divisors is an integer number (2221002729).

Almost surely, 2^4442005457 is an apocalyptic number.

It is an amenable number.

4442005457 is a deficient number, since it is larger than the sum of its proper divisors (1).

4442005457 is an equidigital number, since it uses as much as digits as its factorization.

4442005457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89600, while the sum is 35.

The square root of 4442005457 is about 66648.3717505537. The cubic root of 4442005457 is about 1643.8405748410.

The spelling of 4442005457 in words is "four billion, four hundred forty-two million, five thousand, four hundred fifty-seven".