442122612 has 24 divisors (see below), whose sum is σ = 1032079776. Its totient is φ = 147308448.

The previous prime is 442122601. The next prime is 442122619. The reversal of 442122612 is 216221244.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442122619) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25243 + ... + 39005.

It is an arithmetic number, because the mean of its divisors is an integer number (43003324).

Almost surely, 2^442122612 is an apocalyptic number.

It is an amenable number.

442122612 is an abundant number, since it is smaller than the sum of its proper divisors (589957164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442122612 is a wasteful number, since it uses less digits than its factorization.

442122612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16447 (or 16445 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 442122612 is about 21026.7118684782. The cubic root of 442122612 is about 761.8115901526.

Adding to 442122612 its reverse (216221244), we get a palindrome (658343856).

The spelling of 442122612 in words is "four hundred forty-two million, one hundred twenty-two thousand, six hundred twelve".