442430 has 16 divisors (see below), whose sum is σ = 804384. Its totient is φ = 175200.

The previous prime is 442399. The next prime is 442439. The reversal of 442430 is 34244.

It is a junction number, because it is equal to n+sod(n) for n = 442399 and 442408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1364 + ... + 1656.

It is an arithmetic number, because the mean of its divisors is an integer number (50274).

2⁴⁴²⁴³⁰ is an apocalyptic number.

442430 is a deficient number, since it is larger than the sum of its proper divisors (361954).

442430 is a wasteful number, since it uses less digits than its factorization.

442430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 442430 is about 665.1541174796. The cubic root of 442430 is about 76.1988100383.

Adding to 442430 its reverse (34244), we get a palindrome (476674).

The spelling of 442430 in words is "four hundred forty-two thousand, four hundred thirty".