2163433441 has 4 divisors (see below), whose sum is σ = 2329851412. Its totient is φ = 1997015472.

The previous prime is 2163433439. The next prime is 2163433457. The reversal of 2163433441 is 1443343612.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1048140625 + 1115292816 = 32375^2 + 33396^2 .

It is a cyclic number.

It is not a de Polignac number, because 2163433441 - 2¹ = 2163433439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163436441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83208966 + ... + 83208991.

It is an arithmetic number, because the mean of its divisors is an integer number (582462853).

Almost surely, 2^2163433441 is an apocalyptic number.

It is an amenable number.

2163433441 is a deficient number, since it is larger than the sum of its proper divisors (166417971).

2163433441 is a wasteful number, since it uses less digits than its factorization.

2163433441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166417970.

The product of its digits is 20736, while the sum is 31.

The square root of 2163433441 is about 46512.7234313365. The cubic root of 2163433441 is about 1293.3453703592.

The spelling of 2163433441 in words is "two billion, one hundred sixty-three million, four hundred thirty-three thousand, four hundred forty-one".