442433424 has 40 divisors (see below), whose sum is σ = 1144882080. Its totient is φ = 147228928.

The previous prime is 442433423. The next prime is 442433441. The reversal of 442433424 is 424334244.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 442433391 and 442433400.

It is not an unprimeable number, because it can be changed into a prime (442433423) 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, 22147 + ... + 37085.

It is an arithmetic number, because the mean of its divisors is an integer number (28622052).

Almost surely, 2^442433424 is an apocalyptic number.

It is an amenable number.

442433424 is an abundant number, since it is smaller than the sum of its proper divisors (702448656).

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

442433424 is a wasteful number, since it uses less digits than its factorization.

442433424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15567 (or 15561 counting only the distinct ones).

The product of its digits is 36864, while the sum is 30.

The square root of 442433424 is about 21034.1014545428. The cubic root of 442433424 is about 761.9900660729.

Adding to 442433424 its reverse (424334244), we get a palindrome (866767668).

The spelling of 442433424 in words is "four hundred forty-two million, four hundred thirty-three thousand, four hundred twenty-four".