2328581 has 4 divisors (see below), whose sum is σ = 2332512. Its totient is φ = 2324652.

The previous prime is 2328569. The next prime is 2328617. The reversal of 2328581 is 1858232.

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 2328581 - 2⁶ = 2328517 is a prime.

It is a super-2 number, since 2×2328581² = 10844578947122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2328181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875 + ... + 2328.

It is an arithmetic number, because the mean of its divisors is an integer number (583128).

2^2328581 is an apocalyptic number.

It is an amenable number.

2328581 is a deficient number, since it is larger than the sum of its proper divisors (3931).

2328581 is an equidigital number, since it uses as much as digits as its factorization.

2328581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930.

The product of its digits is 3840, while the sum is 29.

The square root of 2328581 is about 1525.9688725528. The cubic root of 2328581 is about 132.5451323646.

The spelling of 2328581 in words is "two million, three hundred twenty-eight thousand, five hundred eighty-one".