442908 has 30 divisors (see below), whose sum is σ = 1158696. Its totient is φ = 147528.

The previous prime is 442903. The next prime is 442919. The reversal of 442908 is 809244.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 442908.

It is not an unprimeable number, because it can be changed into a prime (442903) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 360 + ... + 1007.

2⁴⁴²⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

442908 is an abundant number, since it is smaller than the sum of its proper divisors (715788).

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

442908 is a wasteful number, since it uses less digits than its factorization.

442908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383 (or 1372 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 442908 is about 665.5133357041. The cubic root of 442908 is about 76.2262418143.

The spelling of 442908 in words is "four hundred forty-two thousand, nine hundred eight".