442231100 has 18 divisors (see below), whose sum is σ = 959641704. Its totient is φ = 176892400.

The previous prime is 442231039. The next prime is 442231103. The reversal of 442231100 is 1132244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442231103) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2211056 + ... + 2211255.

It is an arithmetic number, because the mean of its divisors is an integer number (53313428).

Almost surely, 2^442231100 is an apocalyptic number.

It is an amenable number.

442231100 is an abundant number, since it is smaller than the sum of its proper divisors (517410604).

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

442231100 is a wasteful number, since it uses less digits than its factorization.

442231100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422325 (or 4422318 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 442231100 is about 21029.2914764145. The cubic root of 442231100 is about 761.8738961392.

Adding to 442231100 its reverse (1132244), we get a palindrome (443363344).

The spelling of 442231100 in words is "four hundred forty-two million, two hundred thirty-one thousand, one hundred".