43681368 has 32 divisors (see below), whose sum is σ = 110997360. Its totient is φ = 14321280.

The previous prime is 43681321. The next prime is 43681369. The reversal of 43681368 is 86318634.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43681369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13455 + ... + 16382.

Almost surely, 2^43681368 is an apocalyptic number.

It is an amenable number.

43681368 is an abundant number, since it is smaller than the sum of its proper divisors (67315992).

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

43681368 is a wasteful number, since it uses less digits than its factorization.

43681368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29907 (or 29903 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 43681368 is about 6609.1881498411. The cubic root of 43681368 is about 352.1805848534.

The spelling of 43681368 in words is "forty-three million, six hundred eighty-one thousand, three hundred sixty-eight".