4143442646 has 24 divisors (see below), whose sum is σ = 7237020960. Its totient is φ = 1774008432.

The previous prime is 4143442643. The next prime is 4143442703. The reversal of 4143442646 is 6462443414.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4143442643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81476 + ... + 122168.

It is an arithmetic number, because the mean of its divisors is an integer number (301542540).

Almost surely, 2^4143442646 is an apocalyptic number.

4143442646 is a deficient number, since it is larger than the sum of its proper divisors (3093578314).

4143442646 is a wasteful number, since it uses less digits than its factorization.

4143442646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41748 (or 41741 counting only the distinct ones).

The product of its digits is 221184, while the sum is 38.

The square root of 4143442646 is about 64369.5785755973. The cubic root of 4143442646 is about 1606.1537297780.

The spelling of 4143442646 in words is "four billion, one hundred forty-three million, four hundred forty-two thousand, six hundred forty-six".