2426681 has 4 divisors (see below), whose sum is σ = 2444532. Its totient is φ = 2408832.

The previous prime is 2426651. The next prime is 2426693. The reversal of 2426681 is 1866242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1915456 + 511225 = 1384^2 + 715^2 .

It is a cyclic number.

It is not a de Polignac number, because 2426681 - 2⁶ = 2426617 is a prime.

It is a super-2 number, since 2×2426681² = 11777561351522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2426621) 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, 8720 + ... + 8993.

It is an arithmetic number, because the mean of its divisors is an integer number (611133).

2^2426681 is an apocalyptic number.

It is an amenable number.

2426681 is a deficient number, since it is larger than the sum of its proper divisors (17851).

2426681 is a wasteful number, since it uses less digits than its factorization.

2426681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17850.

The product of its digits is 4608, while the sum is 29.

The square root of 2426681 is about 1557.7807933082. The cubic root of 2426681 is about 134.3809055274.

The spelling of 2426681 in words is "two million, four hundred twenty-six thousand, six hundred eighty-one".