43028881 has 4 divisors (see below), whose sum is σ = 49175872. Its totient is φ = 36881892.

The previous prime is 43028879. The next prime is 43028893. The reversal of 43028881 is 18882034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43028881 - 2¹ = 43028879 is a prime.

It is a super-2 number, since 2×43028881² = 3702969200224322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43028801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3073485 + ... + 3073498.

It is an arithmetic number, because the mean of its divisors is an integer number (12293968).

Almost surely, 2^43028881 is an apocalyptic number.

It is an amenable number.

43028881 is a deficient number, since it is larger than the sum of its proper divisors (6146991).

43028881 is an equidigital number, since it uses as much as digits as its factorization.

43028881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6146990.

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

The square root of 43028881 is about 6559.6403102609. The cubic root of 43028881 is about 350.4182238642.

The spelling of 43028881 in words is "forty-three million, twenty-eight thousand, eight hundred eighty-one".