442231232 has 28 divisors (see below), whose sum is σ = 923742120. Its totient is φ = 209477376.

The previous prime is 442231187. The next prime is 442231247. The reversal of 442231232 is 232132244.

It is a junction number, because it is equal to n+sod(n) for n = 442231198 and 442231207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180623 + ... + 183054.

It is an arithmetic number, because the mean of its divisors is an integer number (32990790).

Almost surely, 2^442231232 is an apocalyptic number.

It is an amenable number.

442231232 is an abundant number, since it is smaller than the sum of its proper divisors (481510888).

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

442231232 is a wasteful number, since it uses less digits than its factorization.

442231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363708 (or 363698 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 442231232 is about 21029.2946148938. The cubic root of 442231232 is about 761.8739719422.

Adding to 442231232 its reverse (232132244), we get a palindrome (674363476).

The spelling of 442231232 in words is "four hundred forty-two million, two hundred thirty-one thousand, two hundred thirty-two".