442432443 has 8 divisors (see below), whose sum is σ = 590129488. Its totient is φ = 294845184.

The previous prime is 442432427. The next prime is 442432447. The reversal of 442432443 is 344234244.

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

It is not a de Polignac number, because 442432443 - 2⁴ = 442432427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442432443.

It is not an unprimeable number, because it can be changed into a prime (442432447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17530 + ... + 34527.

It is an arithmetic number, because the mean of its divisors is an integer number (73766186).

Almost surely, 2^442432443 is an apocalyptic number.

442432443 is a deficient number, since it is larger than the sum of its proper divisors (147697045).

442432443 is a wasteful number, since it uses less digits than its factorization.

442432443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54893.

The product of its digits is 36864, while the sum is 30.

The square root of 442432443 is about 21034.0781352547. The cubic root of 442432443 is about 761.9895028900.

Adding to 442432443 its reverse (344234244), we get a palindrome (786666687).

The spelling of 442432443 in words is "four hundred forty-two million, four hundred thirty-two thousand, four hundred forty-three".