442133422 has 16 divisors (see below), whose sum is σ = 679964544. Its totient is φ = 215488000.

The previous prime is 442133413. The next prime is 442133423. The reversal of 442133422 is 224331244.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442133423) 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 7 ways as a sum of consecutive naturals, for example, 169347 + ... + 171937.

It is an arithmetic number, because the mean of its divisors is an integer number (42497784).

Almost surely, 2^442133422 is an apocalyptic number.

442133422 is a deficient number, since it is larger than the sum of its proper divisors (237831122).

442133422 is a wasteful number, since it uses less digits than its factorization.

442133422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4715.

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

The square root of 442133422 is about 21026.9689208882. The cubic root of 442133422 is about 761.8177989251.

Adding to 442133422 its reverse (224331244), we get a palindrome (666464666).

The spelling of 442133422 in words is "four hundred forty-two million, one hundred thirty-three thousand, four hundred twenty-two".