442344312 has 24 divisors (see below), whose sum is σ = 1198016040. Its totient is φ = 147448080.

The previous prime is 442344293. The next prime is 442344317. The reversal of 442344312 is 213443244.

It is a happy number.

442344312 is a `hidden beast` number, since 4 + 4 + 2 + 344 + 312 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

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 (442344317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3071764 + ... + 3071907.

It is an arithmetic number, because the mean of its divisors is an integer number (49917335).

Almost surely, 2^442344312 is an apocalyptic number.

It is an amenable number.

442344312 is an abundant number, since it is smaller than the sum of its proper divisors (755671728).

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

442344312 is a wasteful number, since it uses less digits than its factorization.

442344312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6143683 (or 6143676 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 442344312 is about 21031.9830734051. The cubic root of 442344312 is about 761.9389043127.

Adding to 442344312 its reverse (213443244), we get a palindrome (655787556).

The spelling of 442344312 in words is "four hundred forty-two million, three hundred forty-four thousand, three hundred twelve".