442311404 has 12 divisors (see below), whose sum is σ = 774874128. Its totient is φ = 220918800.

The previous prime is 442311383. The next prime is 442311433. The reversal of 442311404 is 404113244.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 442311404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54992 + ... + 62519.

It is an arithmetic number, because the mean of its divisors is an integer number (64572844).

Almost surely, 2^442311404 is an apocalyptic number.

It is an amenable number.

442311404 is a deficient number, since it is larger than the sum of its proper divisors (332562724).

442311404 is a wasteful number, since it uses less digits than its factorization.

442311404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118456 (or 118454 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 442311404 is about 21031.2007265396. The cubic root of 442311404 is about 761.9200091470.

Adding to 442311404 its reverse (404113244), we get a palindrome (846424648).

The spelling of 442311404 in words is "four hundred forty-two million, three hundred eleven thousand, four hundred four".