442912 has 12 divisors (see below), whose sum is σ = 872046. Its totient is φ = 221440.

The previous prime is 442903. The next prime is 442919. The reversal of 442912 is 219244.

It can be written as a sum of positive squares in only one way, i.e., 404496 + 38416 = 636^2 + 196^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442919) by changing a digit.

442912 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6889 + ... + 6952.

2⁴⁴²⁹¹² is an apocalyptic number.

It is an amenable number.

442912 is a deficient number, since it is larger than the sum of its proper divisors (429134).

442912 is a wasteful number, since it uses less digits than its factorization.

442912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13851 (or 13843 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 442912 is about 665.5163408963. The cubic root of 442912 is about 76.2264712856.

The spelling of 442912 in words is "four hundred forty-two thousand, nine hundred twelve".