442230 has 16 divisors (see below), whose sum is σ = 1061424. Its totient is φ = 117920.

The previous prime is 442229. The next prime is 442237. The reversal of 442230 is 32244.

442230 = 331² + 332² + ... + 334².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 442230.

It is not an unprimeable number, because it can be changed into a prime (442237) 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, 7341 + ... + 7400.

It is an arithmetic number, because the mean of its divisors is an integer number (66339).

2⁴⁴²²³⁰ is an apocalyptic number.

442230 is an abundant number, since it is smaller than the sum of its proper divisors (619194).

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

442230 is a wasteful number, since it uses less digits than its factorization.

442230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14751.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 442230 is about 665.0037593879. The cubic root of 442230 is about 76.1873264447.

Adding to 442230 its reverse (32244), we get a palindrome (474474).

The spelling of 442230 in words is "four hundred forty-two thousand, two hundred thirty".