442340222 has 8 divisors (see below), whose sum is σ = 664146000. Its totient is φ = 220958224.

The previous prime is 442340191. The next prime is 442340237. The reversal of 442340222 is 222043244.

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

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, 103322 + ... + 107517.

It is an arithmetic number, because the mean of its divisors is an integer number (83018250).

Almost surely, 2^442340222 is an apocalyptic number.

442340222 is a deficient number, since it is larger than the sum of its proper divisors (221805778).

442340222 is a wasteful number, since it uses less digits than its factorization.

442340222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211890.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 442340222 is about 21031.8858403140. The cubic root of 442340222 is about 761.9365559613.

Adding to 442340222 its reverse (222043244), we get a palindrome (664383466).

The spelling of 442340222 in words is "four hundred forty-two million, three hundred forty thousand, two hundred twenty-two".