442239391934 has 4 divisors (see below), whose sum is σ = 663359087904. Its totient is φ = 221119695966.

The previous prime is 442239391897. The next prime is 442239391939. The reversal of 442239391934 is 439193932244.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442239391939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110559847982 + ... + 110559847985.

It is an arithmetic number, because the mean of its divisors is an integer number (165839771976).

Almost surely, 2^442239391934 is an apocalyptic number.

442239391934 is a deficient number, since it is larger than the sum of its proper divisors (221119695970).

442239391934 is a wasteful number, since it uses less digits than its factorization.

442239391934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221119695969.

The product of its digits is 5038848, while the sum is 53.

The spelling of 442239391934 in words is "four hundred forty-two billion, two hundred thirty-nine million, three hundred ninety-one thousand, nine hundred thirty-four".