2216243929 has 9 divisors (see below), whose sum is σ = 2237200693. Its totient is φ = 2195482972.

The previous prime is 2216243927. The next prime is 2216243941. The reversal of 2216243929 is 9293426122.

The square root of 2216243929 is 47077.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2216243929 - 2¹ = 2216243927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2216243891 and 2216243900.

It is not an unprimeable number, because it can be changed into a prime (2216243921) by changing a digit.

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 in 8 ways as a sum of consecutive naturals, for example, 8426652 + ... + 8426914.

Almost surely, 2^2216243929 is an apocalyptic number.

2216243929 is the 47077-th square number.

2216243929 is the 23539-th centered octagonal number.

It is an amenable number.

2216243929 is a deficient number, since it is larger than the sum of its proper divisors (20956764).

2216243929 is an frugal number, since it uses more digits than its factorization.

2216243929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 442 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The cubic root of 2216243929 is about 1303.7846181042.

The spelling of 2216243929 in words is "two billion, two hundred sixteen million, two hundred forty-three thousand, nine hundred twenty-nine".