2428081 has 4 divisors (see below), whose sum is σ = 2484592. Its totient is φ = 2371572.

The previous prime is 2428079. The next prime is 2428099. The reversal of 2428081 is 1808242.

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 an emirpimes, since its reverse is a distinct semiprime: 1808242 = 2 ⋅904121.

It is a cyclic number.

It is not a de Polignac number, because 2428081 - 2¹ = 2428079 is a prime.

It is a super-2 number, since 2×2428081² = 11791154685122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2428021) 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, 28191 + ... + 28276.

It is an arithmetic number, because the mean of its divisors is an integer number (621148).

2^2428081 is an apocalyptic number.

It is an amenable number.

2428081 is a deficient number, since it is larger than the sum of its proper divisors (56511).

2428081 is an equidigital number, since it uses as much as digits as its factorization.

2428081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56510.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 2428081 is about 1558.2300857062. The cubic root of 2428081 is about 134.4067428885.

The spelling of 2428081 in words is "two million, four hundred twenty-eight thousand, eighty-one".