442226404 has 24 divisors (see below), whose sum is σ = 789589080. Its totient is φ = 216674304.

The previous prime is 442226381. The next prime is 442226413. The reversal of 442226404 is 404622244.

It can be written as a sum of positive squares in 4 ways, for example, as 34105600 + 408120804 = 5840^2 + 20202^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34732 + ... + 45724.

It is an arithmetic number, because the mean of its divisors is an integer number (32899545).

Almost surely, 2^442226404 is an apocalyptic number.

It is an amenable number.

442226404 is a deficient number, since it is larger than the sum of its proper divisors (347362676).

442226404 is a wasteful number, since it uses less digits than its factorization.

442226404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11199 (or 11197 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 442226404 is about 21029.1798223326. The cubic root of 442226404 is about 761.8711993799.

Adding to 442226404 its reverse (404622244), we get a palindrome (846848648).

The spelling of 442226404 in words is "four hundred forty-two million, two hundred twenty-six thousand, four hundred four".