442979930738 has 4 divisors (see below), whose sum is σ = 664469896110. Its totient is φ = 221489965368.

The previous prime is 442979930699. The next prime is 442979930761. The reversal of 442979930738 is 837039979244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 442699937449 + 279993289 = 665357^2 + 16733^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110744982683 + ... + 110744982686.

Almost surely, 2^442979930738 is an apocalyptic number.

442979930738 is a deficient number, since it is larger than the sum of its proper divisors (221489965372).

442979930738 is a wasteful number, since it uses less digits than its factorization.

442979930738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221489965371.

The product of its (nonzero) digits is 82301184, while the sum is 65.

The spelling of 442979930738 in words is "four hundred forty-two billion, nine hundred seventy-nine million, nine hundred thirty thousand, seven hundred thirty-eight".