442030344 has 32 divisors (see below), whose sum is σ = 1262944320. Its totient is φ = 126294336.

The previous prime is 442030343. The next prime is 442030427. The reversal of 442030344 is 443030244.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (442030343) 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, 1315399 + ... + 1315734.

It is an arithmetic number, because the mean of its divisors is an integer number (39467010).

Almost surely, 2^442030344 is an apocalyptic number.

It is an amenable number.

442030344 is an abundant number, since it is smaller than the sum of its proper divisors (820913976).

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

442030344 is a wasteful number, since it uses less digits than its factorization.

442030344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631149 (or 2631145 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 442030344 is about 21024.5176876902. The cubic root of 442030344 is about 761.7585914895.

Adding to 442030344 its reverse (443030244), we get a palindrome (885060588).

The spelling of 442030344 in words is "four hundred forty-two million, thirty thousand, three hundred forty-four".