442340344 has 16 divisors (see below), whose sum is σ = 829712520. Its totient is φ = 221083680.

The previous prime is 442340321. The next prime is 442340363. The reversal of 442340344 is 443043244.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 14374 + ... + 33034.

Almost surely, 2^442340344 is an apocalyptic number.

It is an amenable number.

442340344 is a deficient number, since it is larger than the sum of its proper divisors (387372176).

442340344 is a wasteful number, since it uses less digits than its factorization.

442340344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21630 (or 21626 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

The square root of 442340344 is about 21031.8887406719. Note that the first 3 decimals coincide. The cubic root of 442340344 is about 761.9366260101.

Adding to 442340344 its reverse (443043244), we get a palindrome (885383588).

The spelling of 442340344 in words is "four hundred forty-two million, three hundred forty thousand, three hundred forty-four".