442909244 has 6 divisors (see below), whose sum is σ = 775091184. Its totient is φ = 221454620.

The previous prime is 442909231. The next prime is 442909333.

442909244 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 442909198 and 442909207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55363652 + ... + 55363659.

It is an arithmetic number, because the mean of its divisors is an integer number (129181864).

Almost surely, 2^442909244 is an apocalyptic number.

It is an amenable number.

442909244 is a deficient number, since it is larger than the sum of its proper divisors (332181940).

442909244 is a wasteful number, since it uses less digits than its factorization.

442909244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110727315 (or 110727313 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 442909244 is about 21045.4090955724. The cubic root of 442909244 is about 762.2631318002.

The spelling of 442909244 in words is "four hundred forty-two million, nine hundred nine thousand, two hundred forty-four".