442402214 has 8 divisors (see below), whose sum is σ = 668828928. Its totient is φ = 219459240.

The previous prime is 442402199. The next prime is 442402241. The reversal of 442402214 is 412204244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 442402214.

It is a congruent number.

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, 870617 + ... + 871124.

It is an arithmetic number, because the mean of its divisors is an integer number (83603616).

Almost surely, 2^442402214 is an apocalyptic number.

442402214 is a deficient number, since it is larger than the sum of its proper divisors (226426714).

442402214 is a wasteful number, since it uses less digits than its factorization.

442402214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741870.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 442402214 is about 21033.3595509609. The cubic root of 442402214 is about 761.9721482967.

Adding to 442402214 its reverse (412204244), we get a palindrome (854606458).

The spelling of 442402214 in words is "four hundred forty-two million, four hundred two thousand, two hundred fourteen".