442142334 has 32 divisors (see below), whose sum is σ = 984725280. Its totient is φ = 147052800.

The previous prime is 442142333. The next prime is 442142357. The reversal of 442142334 is 433241244.

It is a happy number.

442142334 is a `hidden beast` number, since 4 + 421 + 4 + 233 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 442142298 and 442142307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442142333) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16014 + ... + 33774.

It is an arithmetic number, because the mean of its divisors is an integer number (30772665).

Almost surely, 2^442142334 is an apocalyptic number.

442142334 is an abundant number, since it is smaller than the sum of its proper divisors (542582946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442142334 is a wasteful number, since it uses less digits than its factorization.

442142334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18233 (or 18227 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 442142334 is about 21027.1808381438. The cubic root of 442142334 is about 761.8229174966.

Adding to 442142334 its reverse (433241244), we get a palindrome (875383578).

The spelling of 442142334 in words is "four hundred forty-two million, one hundred forty-two thousand, three hundred thirty-four".