442007224 has 32 divisors (see below), whose sum is σ = 850449600. Its totient is φ = 215239680.

The previous prime is 442007219. The next prime is 442007239. The reversal of 442007224 is 422700244.

It is a happy number.

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, 340144 + ... + 341440.

It is an arithmetic number, because the mean of its divisors is an integer number (26576550).

Almost surely, 2^442007224 is an apocalyptic number.

It is an amenable number.

442007224 is a deficient number, since it is larger than the sum of its proper divisors (408442376).

442007224 is a wasteful number, since it uses less digits than its factorization.

442007224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 442007224 is about 21023.9678462463. The cubic root of 442007224 is about 761.7453102250.

Adding to 442007224 its reverse (422700244), we get a palindrome (864707468).

The spelling of 442007224 in words is "four hundred forty-two million, seven thousand, two hundred twenty-four".