442403324 has 12 divisors (see below), whose sum is σ = 844588248. Its totient is φ = 201092400.

The previous prime is 442403303. The next prime is 442403327. The reversal of 442403324 is 423304244.

It is a junction number, because it is equal to n+sod(n) for n = 442403293 and 442403302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442403327) 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 3 ways as a sum of consecutive naturals, for example, 5027267 + ... + 5027354.

It is an arithmetic number, because the mean of its divisors is an integer number (70382354).

Almost surely, 2^442403324 is an apocalyptic number.

442403324 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

442403324 is a deficient number, since it is larger than the sum of its proper divisors (402184924).

442403324 is a wasteful number, since it uses less digits than its factorization.

442403324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10054636 (or 10054634 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 442403324 is about 21033.3859375993. The cubic root of 442403324 is about 761.9727855662.

Adding to 442403324 its reverse (423304244), we get a palindrome (865707568).

The spelling of 442403324 in words is "four hundred forty-two million, four hundred three thousand, three hundred twenty-four".