43230681 has 24 divisors (see below), whose sum is σ = 70790720. Its totient is φ = 25202016.

The previous prime is 43230667. The next prime is 43230701. The reversal of 43230681 is 18603234.

It is a happy number.

It is not a de Polignac number, because 43230681 - 2²² = 39036377 is a prime.

It is a super-2 number, since 2×43230681² = 3737783559447522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43230601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7501 + ... + 11946.

Almost surely, 2^43230681 is an apocalyptic number.

It is an amenable number.

43230681 is a deficient number, since it is larger than the sum of its proper divisors (27560039).

43230681 is a wasteful number, since it uses less digits than its factorization.

43230681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19485 (or 19482 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 43230681 is about 6575.0042585538. The cubic root of 43230681 is about 350.9651753990.

It can be divided in two parts, 432 and 30681, that added together give a palindrome (31113).

The spelling of 43230681 in words is "forty-three million, two hundred thirty thousand, six hundred eighty-one".