442031230 has 16 divisors (see below), whose sum is σ = 817161120. Its totient is φ = 172033632.

The previous prime is 442031207. The next prime is 442031281. The reversal of 442031230 is 32130244.

It is a junction number, because it is equal to n+sod(n) for n = 442031198 and 442031207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596970 + ... + 597709.

It is an arithmetic number, because the mean of its divisors is an integer number (51072570).

Almost surely, 2^442031230 is an apocalyptic number.

442031230 is a deficient number, since it is larger than the sum of its proper divisors (375129890).

442031230 is a wasteful number, since it uses less digits than its factorization.

442031230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194723.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 442031230 is about 21024.5387583176. The cubic root of 442031230 is about 761.7591004422.

Adding to 442031230 its reverse (32130244), we get a palindrome (474161474).

The spelling of 442031230 in words is "four hundred forty-two million, thirty-one thousand, two hundred thirty".