4143540 has 48 divisors (see below), whose sum is σ = 11829888. Its totient is φ = 1083264.

The previous prime is 4143521. The next prime is 4143551. The reversal of 4143540 is 453414.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2529 + ... + 3831.

It is an arithmetic number, because the mean of its divisors is an integer number (246456).

Almost surely, 2^4143540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4143540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5914944).

4143540 is an abundant number, since it is smaller than the sum of its proper divisors (7686348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4143540 is a wasteful number, since it uses less digits than its factorization.

4143540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368 (or 1366 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 4143540 is about 2035.5687165999. The cubic root of 4143540 is about 160.6166309033.

Adding to 4143540 its reverse (453414), we get a palindrome (4596954).

The spelling of 4143540 in words is "four million, one hundred forty-three thousand, five hundred forty".