4243443461 has 8 divisors (see below), whose sum is σ = 4385415384. Its totient is φ = 4103303680.

The previous prime is 4243443431. The next prime is 4243443481. The reversal of 4243443461 is 1643443424.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1283430625 + 2960012836 = 35825^2 + 54406^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4243443461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243443431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453326 + ... + 462591.

It is an arithmetic number, because the mean of its divisors is an integer number (548176923).

Almost surely, 2^4243443461 is an apocalyptic number.

4243443461 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4243443461 is a deficient number, since it is larger than the sum of its proper divisors (141971923).

4243443461 is a wasteful number, since it uses less digits than its factorization.

4243443461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916071.

The product of its digits is 110592, while the sum is 35.

The square root of 4243443461 is about 65141.7182840613. The cubic root of 4243443461 is about 1618.9725056096.

Adding to 4243443461 its reverse (1643443424), we get a palindrome (5886886885).

The spelling of 4243443461 in words is "four billion, two hundred forty-three million, four hundred forty-three thousand, four hundred sixty-one".