442031342 has 24 divisors (see below), whose sum is σ = 706296024. Its totient is φ = 207391184.

The previous prime is 442031339. The next prime is 442031351. The reversal of 442031342 is 243130244.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52133 + ... + 60015.

It is an arithmetic number, because the mean of its divisors is an integer number (29429001).

Almost surely, 2^442031342 is an apocalyptic number.

442031342 is a deficient number, since it is larger than the sum of its proper divisors (264264682).

442031342 is a wasteful number, since it uses less digits than its factorization.

442031342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7984 (or 7961 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 442031342 is about 21024.5414218717. The cubic root of 442031342 is about 761.7591647793.

Adding to 442031342 its reverse (243130244), we get a palindrome (685161586).

The spelling of 442031342 in words is "four hundred forty-two million, thirty-one thousand, three hundred forty-two".