43426261 has 4 divisors (see below), whose sum is σ = 44350272. Its totient is φ = 42502252.

The previous prime is 43426237. The next prime is 43426303. The reversal of 43426261 is 16262434.

43426261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 43426261 - 2⁹ = 43425749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43426561) by changing a digit.

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, 461935 + ... + 462028.

It is an arithmetic number, because the mean of its divisors is an integer number (11087568).

Almost surely, 2^43426261 is an apocalyptic number.

It is an amenable number.

43426261 is a deficient number, since it is larger than the sum of its proper divisors (924011).

43426261 is an equidigital number, since it uses as much as digits as its factorization.

43426261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924010.

The product of its digits is 6912, while the sum is 28.

The square root of 43426261 is about 6589.8604689326. The cubic root of 43426261 is about 351.4936466352.

Adding to 43426261 its reverse (16262434), we get a palindrome (59688695).

The spelling of 43426261 in words is "forty-three million, four hundred twenty-six thousand, two hundred sixty-one".