442999398724 has 9 divisors (see below), whose sum is σ = 775251277311. Its totient is φ = 221499033780.

The previous prime is 442999398719. The next prime is 442999398769. The reversal of 442999398724 is 427893999244.

The square root of 442999398724 is 665582.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1164769 + ... + 1497559.

Almost surely, 2^442999398724 is an apocalyptic number.

442999398724 is the 665582-nd square number.

It is an amenable number.

442999398724 is a deficient number, since it is larger than the sum of its proper divisors (332251878587).

442999398724 is an frugal number, since it uses more digits than its factorization.

442999398724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665586 (or 332793 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 70.

The spelling of 442999398724 in words is "four hundred forty-two billion, nine hundred ninety-nine million, three hundred ninety-eight thousand, seven hundred twenty-four".