442232211 has 8 divisors (see below), whose sum is σ = 590250384. Its totient is φ = 294517760.

The previous prime is 442232183. The next prime is 442232213. The reversal of 442232211 is 112232244.

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

It is a cyclic number.

It is not a de Polignac number, because 442232211 - 2⁵ = 442232179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442232213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72510 + ... + 78371.

It is an arithmetic number, because the mean of its divisors is an integer number (73781298).

Almost surely, 2^442232211 is an apocalyptic number.

442232211 is a deficient number, since it is larger than the sum of its proper divisors (148018173).

442232211 is a wasteful number, since it uses less digits than its factorization.

442232211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151861.

The product of its digits is 768, while the sum is 21.

The square root of 442232211 is about 21029.3178919336. The cubic root of 442232211 is about 761.8745341474.

Adding to 442232211 its reverse (112232244), we get a palindrome (554464455).

The spelling of 442232211 in words is "four hundred forty-two million, two hundred thirty-two thousand, two hundred eleven".