43408128 has 72 divisors (see below), whose sum is σ = 119574000. Its totient is φ = 13963264.

The previous prime is 43408111. The next prime is 43408139. The reversal of 43408128 is 82180434.

It is a junction number, because it is equal to n+sod(n) for n = 43408095 and 43408104.

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, 21298 + ... + 23246.

It is an arithmetic number, because the mean of its divisors is an integer number (1660750).

Almost surely, 2^43408128 is an apocalyptic number.

43408128 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43408128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59787000).

43408128 is an abundant number, since it is smaller than the sum of its proper divisors (76165872).

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

43408128 is a wasteful number, since it uses less digits than its factorization.

43408128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997 (or 1983 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 43408128 is about 6588.4844994885. The cubic root of 43408128 is about 351.4447167828. Note that the first 3 decimals are identical.

The spelling of 43408128 in words is "forty-three million, four hundred eight thousand, one hundred twenty-eight".