442242404 has 48 divisors (see below), whose sum is σ = 844945920. Its totient is φ = 201761280.

The previous prime is 442242391. The next prime is 442242419. The reversal of 442242404 is 404242244.

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 15 ways as a sum of consecutive naturals, for example, 793694 + ... + 794250.

It is an arithmetic number, because the mean of its divisors is an integer number (17603040).

Almost surely, 2^442242404 is an apocalyptic number.

It is an amenable number.

442242404 is a deficient number, since it is larger than the sum of its proper divisors (402703516).

442242404 is a wasteful number, since it uses less digits than its factorization.

442242404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 442242404 is about 21029.5602426679. The cubic root of 442242404 is about 761.8803875786.

Adding to 442242404 its reverse (404242244), we get a palindrome (846484648).

The spelling of 442242404 in words is "four hundred forty-two million, two hundred forty-two thousand, four hundred four".