442947 has 12 divisors (see below), whose sum is σ = 624840. Its totient is φ = 279072.

The previous prime is 442919. The next prime is 442961. The reversal of 442947 is 749244.

It is not a de Polignac number, because 442947 - 2⁸ = 442691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 879 + ... + 1287.

It is an arithmetic number, because the mean of its divisors is an integer number (52070).

2⁴⁴²⁹⁴⁷ is an apocalyptic number.

442947 is a deficient number, since it is larger than the sum of its proper divisors (181893).

442947 is a wasteful number, since it uses less digits than its factorization.

442947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 431 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 442947 is about 665.5426357492. The cubic root of 442947 is about 76.2284791007.

The spelling of 442947 in words is "four hundred forty-two thousand, nine hundred forty-seven".