442013222 has 24 divisors (see below), whose sum is σ = 775560240. Its totient is φ = 188380080.

The previous prime is 442013179. The next prime is 442013233. The reversal of 442013222 is 222310244.

It is a junction number, because it is equal to n+sod(n) for n = 442013194 and 442013203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5279 + ... + 30197.

It is an arithmetic number, because the mean of its divisors is an integer number (32315010).

Almost surely, 2^442013222 is an apocalyptic number.

442013222 is a deficient number, since it is larger than the sum of its proper divisors (333547018).

442013222 is a wasteful number, since it uses less digits than its factorization.

442013222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25116 (or 25109 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 442013222 is about 21024.1104924798. The cubic root of 442013222 is about 761.7487558155.

Adding to 442013222 its reverse (222310244), we get a palindrome (664323466).

The spelling of 442013222 in words is "four hundred forty-two million, thirteen thousand, two hundred twenty-two".