216344022 has 16 divisors (see below), whose sum is σ = 433313712. Its totient is φ = 72010400.

The previous prime is 216343979. The next prime is 216344033. The reversal of 216344022 is 220443612.

It is a junction number, because it is equal to n+sod(n) for n = 216343983 and 216344001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21513 + ... + 29924.

It is an arithmetic number, because the mean of its divisors is an integer number (27082107).

Almost surely, 2^216344022 is an apocalyptic number.

216344022 is an abundant number, since it is smaller than the sum of its proper divisors (216969690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216344022 is a wasteful number, since it uses less digits than its factorization.

216344022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52143.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 216344022 is about 14708.6376663510. The cubic root of 216344022 is about 600.3183699267.

Adding to 216344022 its reverse (220443612), we get a palindrome (436787634).

The spelling of 216344022 in words is "two hundred sixteen million, three hundred forty-four thousand, twenty-two".