442231230 has 32 divisors (see below), whose sum is σ = 1212977664. Its totient is φ = 101081376.

The previous prime is 442231187. The next prime is 442231247. The reversal of 442231230 is 32132244.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 442231197 and 442231206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052722 + ... + 1053141.

It is an arithmetic number, because the mean of its divisors is an integer number (37905552).

Almost surely, 2^442231230 is an apocalyptic number.

442231230 is an abundant number, since it is smaller than the sum of its proper divisors (770746434).

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

442231230 is a wasteful number, since it uses less digits than its factorization.

442231230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105880.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 442231230 is about 21029.2945673411. The cubic root of 442231230 is about 761.8739707937.

Adding to 442231230 its reverse (32132244), we get a palindrome (474363474).

The spelling of 442231230 in words is "four hundred forty-two million, two hundred thirty-one thousand, two hundred thirty".