442999456 has 24 divisors (see below), whose sum is σ = 874480320. Its totient is φ = 220909248.

The previous prime is 442999423. The next prime is 442999457. The reversal of 442999456 is 654999244.

It is a happy number.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (442999457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6136 + ... + 30391.

It is an arithmetic number, because the mean of its divisors is an integer number (36436680).

Almost surely, 2^442999456 is an apocalyptic number.

It is an amenable number.

442999456 is a deficient number, since it is larger than the sum of its proper divisors (431480864).

442999456 is a wasteful number, since it uses less digits than its factorization.

442999456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36916 (or 36908 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 52.

The square root of 442999456 is about 21047.5522567352. The cubic root of 442999456 is about 762.3148810124.

The spelling of 442999456 in words is "four hundred forty-two million, nine hundred ninety-nine thousand, four hundred fifty-six".