2216434381 has 8 divisors (see below), whose sum is σ = 2682072000. Its totient is φ = 1788047808.

The previous prime is 2216434357. The next prime is 2216434387. The reversal of 2216434381 is 1834346122.

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 2216434381 - 2¹¹ = 2216432333 is a prime.

It is a super-2 number, since 2×2216434381² = 9825162730557706322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216434387) 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 7 ways as a sum of consecutive naturals, for example, 9312631 + ... + 9312868.

It is an arithmetic number, because the mean of its divisors is an integer number (335259000).

Almost surely, 2^2216434381 is an apocalyptic number.

It is an amenable number.

2216434381 is a deficient number, since it is larger than the sum of its proper divisors (465637619).

2216434381 is a wasteful number, since it uses less digits than its factorization.

2216434381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18625523.

The product of its digits is 27648, while the sum is 34.

The square root of 2216434381 is about 47079.0227277500. The cubic root of 2216434381 is about 1303.8219637640.

The spelling of 2216434381 in words is "two billion, two hundred sixteen million, four hundred thirty-four thousand, three hundred eighty-one".