2216432431 has 4 divisors (see below), whose sum is σ = 2216580192. Its totient is φ = 2216284672.

The previous prime is 2216432417. The next prime is 2216432447. The reversal of 2216432431 is 1342346122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2216432431 - 2⁷ = 2216432303 is a prime.

It is a super-2 number, since 2×2216432431² = 9825145442377139522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2216432431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216432731) 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 3 ways as a sum of consecutive naturals, for example, 48466 + ... + 82351.

It is an arithmetic number, because the mean of its divisors is an integer number (554145048).

Almost surely, 2^2216432431 is an apocalyptic number.

2216432431 is a deficient number, since it is larger than the sum of its proper divisors (147761).

2216432431 is a wasteful number, since it uses less digits than its factorization.

2216432431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147760.

The product of its digits is 6912, while the sum is 28.

The square root of 2216432431 is about 47079.0020178848. The cubic root of 2216432431 is about 1303.8215814001.

Adding to 2216432431 its reverse (1342346122), we get a palindrome (3558778553).

The spelling of 2216432431 in words is "two billion, two hundred sixteen million, four hundred thirty-two thousand, four hundred thirty-one".