43880128 has 56 divisors (see below), whose sum is σ = 95243904. Its totient is φ = 19968000.

The previous prime is 43880099. The next prime is 43880143. The reversal of 43880128 is 82108834.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 43880093 and 43880102.

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, 33078 + ... + 34378.

It is an arithmetic number, because the mean of its divisors is an integer number (1700784).

Almost surely, 2^43880128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43880128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47621952).

43880128 is an abundant number, since it is smaller than the sum of its proper divisors (51363776).

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

43880128 is a wasteful number, since it uses less digits than its factorization.

43880128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 43880128 is about 6624.2077262115. The cubic root of 43880128 is about 352.7139435280.

The spelling of 43880128 in words is "forty-three million, eight hundred eighty thousand, one hundred twenty-eight".