442515968 has 20 divisors (see below), whose sum is σ = 884168670. Its totient is φ = 221257728.

The previous prime is 442515923. The next prime is 442515973. The reversal of 442515968 is 869515244.

It can be written as a sum of positive squares in only one way, i.e., 328624384 + 113891584 = 18128^2 + 10672^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431633 + ... + 432656.

Almost surely, 2^442515968 is an apocalyptic number.

It is an amenable number.

442515968 is a deficient number, since it is larger than the sum of its proper divisors (441652702).

442515968 is an frugal number, since it uses more digits than its factorization.

442515968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864307 (or 864291 counting only the distinct ones).

The product of its digits is 345600, while the sum is 44.

The square root of 442515968 is about 21036.0635100772. The cubic root of 442515968 is about 762.0374508268.

The spelling of 442515968 in words is "four hundred forty-two million, five hundred fifteen thousand, nine hundred sixty-eight".