442224404 has 24 divisors (see below), whose sum is σ = 809621568. Its totient is φ = 210953600.

The previous prime is 442224397. The next prime is 442224467. The reversal of 442224404 is 404422244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30899 + ... + 42885.

It is an arithmetic number, because the mean of its divisors is an integer number (33734232).

Almost surely, 2^442224404 is an apocalyptic number.

It is an amenable number.

442224404 is a deficient number, since it is larger than the sum of its proper divisors (367397164).

442224404 is a wasteful number, since it uses less digits than its factorization.

442224404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12415 (or 12413 counting only the distinct ones).

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

The square root of 442224404 is about 21029.1322693068. The cubic root of 442224404 is about 761.8700508395.

Adding to 442224404 its reverse (404422244), we get a palindrome (846646648).

The spelling of 442224404 in words is "four hundred forty-two million, two hundred twenty-four thousand, four hundred four".