442098 has 20 divisors (see below), whose sum is σ = 990990. Its totient is φ = 147312.

The previous prime is 442097. The next prime is 442109. The reversal of 442098 is 890244.

It can be written as a sum of positive squares in only one way, i.e., 263169 + 178929 = 513^2 + 423^2 .

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

It is not an unprimeable number, because it can be changed into a prime (442097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1203 + ... + 1526.

2⁴⁴²⁰⁹⁸ is an apocalyptic number.

442098 is an abundant number, since it is smaller than the sum of its proper divisors (548892).

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

442098 is a wasteful number, since it uses less digits than its factorization.

442098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743 (or 2734 counting only the distinct ones).

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

The square root of 442098 is about 664.9045044215. The cubic root of 442098 is about 76.1797453761.

The spelling of 442098 in words is "four hundred forty-two thousand, ninety-eight".