2811441 has 4 divisors (see below), whose sum is σ = 3748592. Its totient is φ = 1874292.

The previous prime is 2811439. The next prime is 2811503. The reversal of 2811441 is 1441182.

It is a happy number.

2811441 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 not a de Polignac number, because 2811441 - 2¹ = 2811439 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2811041) 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, 468571 + ... + 468576.

It is an arithmetic number, because the mean of its divisors is an integer number (937148).

2^2811441 is an apocalyptic number.

It is an amenable number.

2811441 is a deficient number, since it is larger than the sum of its proper divisors (937151).

2811441 is an equidigital number, since it uses as much as digits as its factorization.

2811441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937150.

The product of its digits is 256, while the sum is 21.

The square root of 2811441 is about 1676.7352205998. The cubic root of 2811441 is about 141.1376855364.

The spelling of 2811441 in words is "two million, eight hundred eleven thousand, four hundred forty-one".