442604424 has 16 divisors (see below), whose sum is σ = 1106511120. Its totient is φ = 147534800.

The previous prime is 442604413. The next prime is 442604443. The reversal of 442604424 is 424406244.

It is a super-2 number, since 2×442604424² = 391797352288743552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442604391 and 442604400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9220902 + ... + 9220949.

It is an arithmetic number, because the mean of its divisors is an integer number (69156945).

Almost surely, 2^442604424 is an apocalyptic number.

It is an amenable number.

442604424 is an abundant number, since it is smaller than the sum of its proper divisors (663906696).

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

442604424 is a wasteful number, since it uses less digits than its factorization.

442604424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18441860 (or 18441856 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

The square root of 442604424 is about 21038.1658896397. The cubic root of 442604424 is about 762.0882228507.

It can be divided in two parts, 44260 and 4424, that added together give a palindrome (48684).

The spelling of 442604424 in words is "four hundred forty-two million, six hundred four thousand, four hundred twenty-four".