442444324 has 36 divisors (see below), whose sum is σ = 905793840. Its totient is φ = 188544720.

The previous prime is 442444297. The next prime is 442444351. The reversal of 442444324 is 423444244.

It is an interprime number because it is at equal distance from previous prime (442444297) and next prime (442444351).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28779 + ... + 41389.

It is an arithmetic number, because the mean of its divisors is an integer number (25160940).

Almost surely, 2^442444324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442444324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452896920).

442444324 is an abundant number, since it is smaller than the sum of its proper divisors (463349516).

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

442444324 is a wasteful number, since it uses less digits than its factorization.

442444324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12808 (or 12799 counting only the distinct ones).

The product of its digits is 49152, while the sum is 31.

The square root of 442444324 is about 21034.3605560045. The cubic root of 442444324 is about 761.9963236045.

Adding to 442444324 its reverse (423444244), we get a palindrome (865888568).

The spelling of 442444324 in words is "four hundred forty-two million, four hundred forty-four thousand, three hundred twenty-four".