4043261 has 4 divisors (see below), whose sum is σ = 4052832. Its totient is φ = 4033692.

The previous prime is 4043243. The next prime is 4043287. The reversal of 4043261 is 1623404.

It is a happy number.

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 4043261 - 2¹⁸ = 3781117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4043761) 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, 4121 + ... + 5006.

It is an arithmetic number, because the mean of its divisors is an integer number (1013208).

Almost surely, 2^4043261 is an apocalyptic number.

It is an amenable number.

4043261 is a deficient number, since it is larger than the sum of its proper divisors (9571).

4043261 is an equidigital number, since it uses as much as digits as its factorization.

4043261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9570.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4043261 is about 2010.7861646630. The cubic root of 4043261 is about 159.3103257260.

Adding to 4043261 its reverse (1623404), we get a palindrome (5666665).

The spelling of 4043261 in words is "four million, forty-three thousand, two hundred sixty-one".