43028261 has 4 divisors (see below), whose sum is σ = 43042272. Its totient is φ = 43014252.

The previous prime is 43028243. The next prime is 43028267. The reversal of 43028261 is 16282034.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 43028261 - 2⁶ = 43028197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43028261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43028267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185 + ... + 9278.

It is an arithmetic number, because the mean of its divisors is an integer number (10760568).

Almost surely, 2^43028261 is an apocalyptic number.

It is an amenable number.

43028261 is a deficient number, since it is larger than the sum of its proper divisors (14011).

43028261 is an equidigital number, since it uses as much as digits as its factorization.

43028261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14010.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 43028261 is about 6559.5930514019. The cubic root of 43028261 is about 350.4165408059.

The spelling of 43028261 in words is "forty-three million, twenty-eight thousand, two hundred sixty-one".