2426581 has 4 divisors (see below), whose sum is σ = 2441632. Its totient is φ = 2411532.

The previous prime is 2426579. The next prime is 2426591. The reversal of 2426581 is 1856242.

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 2426581 - 2¹ = 2426579 is a prime.

It is a super-2 number, since 2×2426581² = 11776590699122, 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 (2426521) 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, 7281 + ... + 7606.

It is an arithmetic number, because the mean of its divisors is an integer number (610408).

2^2426581 is an apocalyptic number.

It is an amenable number.

2426581 is a deficient number, since it is larger than the sum of its proper divisors (15051).

2426581 is a wasteful number, since it uses less digits than its factorization.

2426581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15050.

The product of its digits is 3840, while the sum is 28.

The square root of 2426581 is about 1557.7486960354. The cubic root of 2426581 is about 134.3790596214.

The spelling of 2426581 in words is "two million, four hundred twenty-six thousand, five hundred eighty-one".