442955812 has 24 divisors (see below), whose sum is σ = 835426872. Its totient is φ = 204288000.

The previous prime is 442955809. The next prime is 442955837. The reversal of 442955812 is 218559244.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4639716 + 438316096 = 2154^2 + 20936^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96612 + ... + 101092.

It is an arithmetic number, because the mean of its divisors is an integer number (34809453).

Almost surely, 2^442955812 is an apocalyptic number.

It is an amenable number.

442955812 is a deficient number, since it is larger than the sum of its proper divisors (392471060).

442955812 is a wasteful number, since it uses less digits than its factorization.

442955812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6399 (or 6397 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 442955812 is about 21046.5154360526. The cubic root of 442955812 is about 762.2898459453.

The spelling of 442955812 in words is "four hundred forty-two million, nine hundred fifty-five thousand, eight hundred twelve".