442142433 has 12 divisors (see below), whose sum is σ = 638843088. Its totient is φ = 294672600.

The previous prime is 442142413. The next prime is 442142471. The reversal of 442142433 is 334241244.

It is a happy number.

It is not a de Polignac number, because 442142433 - 2⁸ = 442142177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442142397 and 442142406.

It is not an unprimeable number, because it can be changed into a prime (442142413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39958 + ... + 49808.

It is an arithmetic number, because the mean of its divisors is an integer number (53236924).

Almost surely, 2^442142433 is an apocalyptic number.

It is an amenable number.

442142433 is a deficient number, since it is larger than the sum of its proper divisors (196700655).

442142433 is a wasteful number, since it uses less digits than its factorization.

442142433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14844 (or 14841 counting only the distinct ones).

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

The square root of 442142433 is about 21027.1831922395. The cubic root of 442142433 is about 761.8229743565.

Adding to 442142433 its reverse (334241244), we get a palindrome (776383677).

The spelling of 442142433 in words is "four hundred forty-two million, one hundred forty-two thousand, four hundred thirty-three".