442993798 has 16 divisors (see below), whose sum is σ = 717239376. Its totient is φ = 203991840.

The previous prime is 442993723. The next prime is 442993799. The reversal of 442993798 is 897399244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442993799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7713 + ... + 30748.

It is an arithmetic number, because the mean of its divisors is an integer number (44827461).

Almost surely, 2^442993798 is an apocalyptic number.

442993798 is a deficient number, since it is larger than the sum of its proper divisors (274245578).

442993798 is a wasteful number, since it uses less digits than its factorization.

442993798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38919.

The product of its digits is 3919104, while the sum is 55.

The square root of 442993798 is about 21047.4178463773. The cubic root of 442993798 is about 762.3116355638.

The spelling of 442993798 in words is "four hundred forty-two million, nine hundred ninety-three thousand, seven hundred ninety-eight".