43140660 has 24 divisors (see below), whose sum is σ = 120794016. Its totient is φ = 11504160.

The previous prime is 43140637. The next prime is 43140667. The reversal of 43140660 is 6604134.

It is a super-2 number, since 2×43140660² = 3722233090471200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43140660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43140667) 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, 359446 + ... + 359565.

It is an arithmetic number, because the mean of its divisors is an integer number (5033084).

Almost surely, 2^43140660 is an apocalyptic number.

It is an amenable number.

43140660 is an abundant number, since it is smaller than the sum of its proper divisors (77653356).

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

43140660 is a wasteful number, since it uses less digits than its factorization.

43140660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719023 (or 719021 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 43140660 is about 6568.1549920811. The cubic root of 43140660 is about 350.7213964384.

Adding to 43140660 its reverse (6604134), we get a palindrome (49744794).

The spelling of 43140660 in words is "forty-three million, one hundred forty thousand, six hundred sixty".