43398128 has 20 divisors (see below), whose sum is σ = 88509960. Its totient is φ = 20556864.

The previous prime is 43398107. The next prime is 43398133. The reversal of 43398128 is 82189334.

43398128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 43398091 and 43398100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71075 + ... + 71682.

It is an arithmetic number, because the mean of its divisors is an integer number (4425498).

Almost surely, 2^43398128 is an apocalyptic number.

It is an amenable number.

43398128 is an abundant number, since it is smaller than the sum of its proper divisors (45111832).

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

43398128 is a wasteful number, since it uses less digits than its factorization.

43398128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142784 (or 142778 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 43398128 is about 6587.7255559108. The cubic root of 43398128 is about 351.4177270826.

The spelling of 43398128 in words is "forty-three million, three hundred ninety-eight thousand, one hundred twenty-eight".