442722443 has 8 divisors (see below), whose sum is σ = 449578416. Its totient is φ = 435888000.

The previous prime is 442722421. The next prime is 442722461. The reversal of 442722443 is 344227244.

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-442722443 is a prime.

It is a super-3 number, since 3×442722443³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442722463) 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, 38828 + ... + 48918.

It is an arithmetic number, because the mean of its divisors is an integer number (56197302).

Almost surely, 2^442722443 is an apocalyptic number.

442722443 is a deficient number, since it is larger than the sum of its proper divisors (6855973).

442722443 is a wasteful number, since it uses less digits than its factorization.

442722443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10765.

The product of its digits is 43008, while the sum is 32.

The square root of 442722443 is about 21040.9705812256. The cubic root of 442722443 is about 762.1559529291.

Adding to 442722443 its reverse (344227244), we get a palindrome (786949687).

The spelling of 442722443 in words is "four hundred forty-two million, seven hundred twenty-two thousand, four hundred forty-three".