43073128 has 32 divisors (see below), whose sum is σ = 92836800. Its totient is φ = 18352512.

The previous prime is 43073123. The next prime is 43073159. The reversal of 43073128 is 82137034.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 43073096 and 43073105.

It is not an unprimeable number, because it can be changed into a prime (43073123) 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, 7876 + ... + 12172.

It is an arithmetic number, because the mean of its divisors is an integer number (2901150).

Almost surely, 2^43073128 is an apocalyptic number.

It is an amenable number.

43073128 is an abundant number, since it is smaller than the sum of its proper divisors (49763672).

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

43073128 is a wasteful number, since it uses less digits than its factorization.

43073128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489 (or 4485 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 43073128 is about 6563.0121133516. The cubic root of 43073128 is about 350.5382954936.

The spelling of 43073128 in words is "forty-three million, seventy-three thousand, one hundred twenty-eight".