43066540 has 48 divisors (see below), whose sum is σ = 103864320. Its totient is φ = 14834880.

The previous prime is 43066493. The next prime is 43066547. The reversal of 43066540 is 4566034.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 43066499 and 43066508.

It is not an unprimeable number, because it can be changed into a prime (43066547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972 + ... + 9331.

It is an arithmetic number, because the mean of its divisors is an integer number (2163840).

Almost surely, 2^43066540 is an apocalyptic number.

It is an amenable number.

43066540 is an abundant number, since it is smaller than the sum of its proper divisors (60797780).

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

43066540 is a wasteful number, since it uses less digits than its factorization.

43066540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10342 (or 10340 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 43066540 is about 6562.5101904683. The cubic root of 43066540 is about 350.5204230663.

The spelling of 43066540 in words is "forty-three million, sixty-six thousand, five hundred forty".