442412443 has 8 divisors (see below), whose sum is σ = 490544496. Its totient is φ = 395599200.

The previous prime is 442412417. The next prime is 442412447. The reversal of 442412443 is 344214244.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442412443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442412447) 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, 328996 + ... + 330337.

It is an arithmetic number, because the mean of its divisors is an integer number (61318062).

Almost surely, 2^442412443 is an apocalyptic number.

442412443 is a deficient number, since it is larger than the sum of its proper divisors (48132053).

442412443 is a wasteful number, since it uses less digits than its factorization.

442412443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659405.

The product of its digits is 12288, while the sum is 28.

The square root of 442412443 is about 21033.6027109005. The cubic root of 442412443 is about 761.9780208962.

Adding to 442412443 its reverse (344214244), we get a palindrome (786626687).

The spelling of 442412443 in words is "four hundred forty-two million, four hundred twelve thousand, four hundred forty-three".