442042312 has 16 divisors (see below), whose sum is σ = 829076400. Its totient is φ = 220955280.

The previous prime is 442042309. The next prime is 442042351. The reversal of 442042312 is 213240244.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 31639 + ... + 43417.

It is an arithmetic number, because the mean of its divisors is an integer number (51817275).

Almost surely, 2^442042312 is an apocalyptic number.

It is an amenable number.

442042312 is a deficient number, since it is larger than the sum of its proper divisors (387034088).

442042312 is a wasteful number, since it uses less digits than its factorization.

442042312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16476 (or 16472 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 442042312 is about 21024.8023058482. The cubic root of 442042312 is about 761.7654663150.

Adding to 442042312 its reverse (213240244), we get a palindrome (655282556).

The spelling of 442042312 in words is "four hundred forty-two million, forty-two thousand, three hundred twelve".