442442242 has 8 divisors (see below), whose sum is σ = 723996432. Its totient is φ = 201110100.

The previous prime is 442442213. The next prime is 442442249. The reversal of 442442242 is 242244244.

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

It is a self number, because there is not a number n which added to its sum of digits gives 442442242.

It is not an unprimeable number, because it can be changed into a prime (442442249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10055484 + ... + 10055527.

It is an arithmetic number, because the mean of its divisors is an integer number (90499554).

Almost surely, 2^442442242 is an apocalyptic number.

442442242 is a deficient number, since it is larger than the sum of its proper divisors (281554190).

442442242 is a wasteful number, since it uses less digits than its factorization.

442442242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20111024.

The product of its digits is 16384, while the sum is 28.

The square root of 442442242 is about 21034.3110654949. The cubic root of 442442242 is about 761.9951283665.

Adding to 442442242 its reverse (242244244), we get a palindrome (684686486).

The spelling of 442442242 in words is "four hundred forty-two million, four hundred forty-two thousand, two hundred forty-two".