4143856 has 10 divisors (see below), whose sum is σ = 8028752. Its totient is φ = 2071920.

The previous prime is 4143851. The next prime is 4143857. The reversal of 4143856 is 6583414.

It is a happy number.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4143851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129480 + ... + 129511.

Almost surely, 2^4143856 is an apocalyptic number.

It is an amenable number.

4143856 is a deficient number, since it is larger than the sum of its proper divisors (3884896).

4143856 is a wasteful number, since it uses less digits than its factorization.

4143856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258999 (or 258993 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 4143856 is about 2035.6463347055. The cubic root of 4143856 is about 160.6207138505.

The spelling of 4143856 in words is "four million, one hundred forty-three thousand, eight hundred fifty-six".