442994 has 4 divisors (see below), whose sum is σ = 664494. Its totient is φ = 221496.

The previous prime is 442991. The next prime is 442997. The reversal of 442994 is 499244.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (442991) and next prime (442997).

It can be written as a sum of positive squares in only one way, i.e., 316969 + 126025 = 563^2 + 355^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 442994.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 442994.

It is not an unprimeable number, because it can be changed into a prime (442991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110747 + ... + 110750.

2⁴⁴²⁹⁹⁴ is an apocalyptic number.

442994 is a deficient number, since it is larger than the sum of its proper divisors (221500).

442994 is a wasteful number, since it uses less digits than its factorization.

442994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221499.

The product of its digits is 10368, while the sum is 32.

The square root of 442994 is about 665.5779443461. The cubic root of 442994 is about 76.2311751432.

The spelling of 442994 in words is "four hundred forty-two thousand, nine hundred ninety-four".