442224442 has 16 divisors (see below), whose sum is σ = 741291264. Its totient is φ = 196108000.

The previous prime is 442224397. The next prime is 442224467. The reversal of 442224442 is 244422244.

It is a super-2 number, since 2×442224442² = 391124914204422728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 442224442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244234 + ... + 246037.

It is an arithmetic number, because the mean of its divisors is an integer number (46330704).

Almost surely, 2^442224442 is an apocalyptic number.

442224442 is a deficient number, since it is larger than the sum of its proper divisors (299066822).

442224442 is a wasteful number, since it uses less digits than its factorization.

442224442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490325.

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

The square root of 442224442 is about 21029.1331728153. The cubic root of 442224442 is about 761.8700726618.

Adding to 442224442 its reverse (244422244), we get a palindrome (686646686).

The spelling of 442224442 in words is "four hundred forty-two million, two hundred twenty-four thousand, four hundred forty-two".