43681308 has 48 divisors (see below), whose sum is σ = 115032960. Its totient is φ = 12779200.

The previous prime is 43681303. The next prime is 43681321. The reversal of 43681308 is 80318634.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43681303) 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 15 ways as a sum of consecutive naturals, for example, 1878 + ... + 9533.

It is an arithmetic number, because the mean of its divisors is an integer number (2396520).

Almost surely, 2^43681308 is an apocalyptic number.

It is an amenable number.

43681308 is an abundant number, since it is smaller than the sum of its proper divisors (71351652).

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

43681308 is a wasteful number, since it uses less digits than its factorization.

43681308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458 (or 11456 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 43681308 is about 6609.1836107041. The cubic root of 43681308 is about 352.1804236035.

The spelling of 43681308 in words is "forty-three million, six hundred eighty-one thousand, three hundred eight".