442140334 has 8 divisors (see below), whose sum is σ = 666057600. Its totient is φ = 220121136.

The previous prime is 442140329. The next prime is 442140337. The reversal of 442140334 is 433041244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 442140299 and 442140308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442140337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473934 + ... + 474865.

It is an arithmetic number, because the mean of its divisors is an integer number (83257200).

Almost surely, 2^442140334 is an apocalyptic number.

442140334 is a deficient number, since it is larger than the sum of its proper divisors (223917266).

442140334 is a wasteful number, since it uses less digits than its factorization.

442140334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949034.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 442140334 is about 21027.1332805972. The cubic root of 442140334 is about 761.8217688106.

Adding to 442140334 its reverse (433041244), we get a palindrome (875181578).

The spelling of 442140334 in words is "four hundred forty-two million, one hundred forty thousand, three hundred thirty-four".