2428091 has 4 divisors (see below), whose sum is σ = 2436672. Its totient is φ = 2419512.

The previous prime is 2428079. The next prime is 2428099. The reversal of 2428091 is 1908242.

2428091 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.

It is a cyclic number.

It is not a de Polignac number, because 2428091 - 2¹⁰ = 2427067 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 2428091.

It is not an unprimeable number, because it can be changed into a prime (2428099) 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, 3851 + ... + 4436.

It is an arithmetic number, because the mean of its divisors is an integer number (609168).

2^2428091 is an apocalyptic number.

2428091 is a deficient number, since it is larger than the sum of its proper divisors (8581).

2428091 is an equidigital number, since it uses as much as digits as its factorization.

2428091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8580.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2428091 is about 1558.2332944717. The cubic root of 2428091 is about 134.4069274054.

The spelling of 2428091 in words is "two million, four hundred twenty-eight thousand, ninety-one".