442293449745 has 16 divisors (see below), whose sum is σ = 808765165440. Its totient is φ = 202191291264.

The previous prime is 442293449713. The next prime is 442293449749. The reversal of 442293449745 is 547944392244.

It is not a de Polignac number, because 442293449745 - 2⁵ = 442293449713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (442293449749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2106159180 + ... + 2106159389.

It is an arithmetic number, because the mean of its divisors is an integer number (50547822840).

Almost surely, 2^442293449745 is an apocalyptic number.

It is an amenable number.

442293449745 is a deficient number, since it is larger than the sum of its proper divisors (366471715695).

442293449745 is a wasteful number, since it uses less digits than its factorization.

442293449745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212318584.

The product of its digits is 34836480, while the sum is 57.

The spelling of 442293449745 in words is "four hundred forty-two billion, two hundred ninety-three million, four hundred forty-nine thousand, seven hundred forty-five".