43081328 has 40 divisors (see below), whose sum is σ = 86780160. Its totient is φ = 20703680.

The previous prime is 43081319. The next prime is 43081331. The reversal of 43081328 is 82318034.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 43081328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43883 + ... + 44853.

It is an arithmetic number, because the mean of its divisors is an integer number (2169504).

Almost surely, 2^43081328 is an apocalyptic number.

It is an amenable number.

43081328 is an abundant number, since it is smaller than the sum of its proper divisors (43698832).

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

43081328 is a wasteful number, since it uses less digits than its factorization.

43081328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 43081328 is about 6563.6367967766. The cubic root of 43081328 is about 350.5605385313.

The spelling of 43081328 in words is "forty-three million, eighty-one thousand, three hundred twenty-eight".