442344432 has 20 divisors (see below), whose sum is σ = 1142723240. Its totient is φ = 147448128.

The previous prime is 442344431. The next prime is 442344439. The reversal of 442344432 is 234443244.

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

It is a self number, because there is not a number n which added to its sum of digits gives 442344432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442344431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4607707 + ... + 4607802.

It is an arithmetic number, because the mean of its divisors is an integer number (57136162).

Almost surely, 2^442344432 is an apocalyptic number.

It is an amenable number.

442344432 is an abundant number, since it is smaller than the sum of its proper divisors (700378808).

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

442344432 is a wasteful number, since it uses less digits than its factorization.

442344432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9215520 (or 9215514 counting only the distinct ones).

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

The square root of 442344432 is about 21031.9859262030. The cubic root of 442344432 is about 761.9389732128.

Adding to 442344432 its reverse (234443244), we get a palindrome (676787676).

The spelling of 442344432 in words is "four hundred forty-two million, three hundred forty-four thousand, four hundred thirty-two".