43120028 has 24 divisors (see below), whose sum is σ = 88345824. Its totient is φ = 18028800.

The previous prime is 43120027. The next prime is 43120057. The reversal of 43120028 is 82002134.

It is a junction number, because it is equal to n+sod(n) for n = 43119991 and 43120009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43120027) 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, 17633 + ... + 19928.

It is an arithmetic number, because the mean of its divisors is an integer number (3681076).

Almost surely, 2^43120028 is an apocalyptic number.

It is an amenable number.

43120028 is an abundant number, since it is smaller than the sum of its proper divisors (45225796).

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

43120028 is a wasteful number, since it uses less digits than its factorization.

43120028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37613 (or 37611 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 43120028 is about 6566.5841957596. The cubic root of 43120028 is about 350.6654767429.

The spelling of 43120028 in words is "forty-three million, one hundred twenty thousand, twenty-eight".