43001028 has 108 divisors (see below), whose sum is σ = 133202160. Its totient is φ = 11630304.

The previous prime is 43001027. The next prime is 43001039. The reversal of 43001028 is 82010034.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 43001028.

It is not an unprimeable number, because it can be changed into a prime (43001027) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32875 + ... + 34157.

Almost surely, 2^43001028 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 43001028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66601080).

43001028 is an abundant number, since it is smaller than the sum of its proper divisors (90201132).

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

43001028 is a wasteful number, since it uses less digits than its factorization.

43001028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 43001028 is about 6557.5169080987. The cubic root of 43001028 is about 350.3425978716.

The spelling of 43001028 in words is "forty-three million, one thousand, twenty-eight".