2340681 has 12 divisors (see below), whose sum is σ = 3630672. Its totient is φ = 1337448.

The previous prime is 2340673. The next prime is 2340697. The reversal of 2340681 is 1860432.

It is a happy number.

It is not a de Polignac number, because 2340681 - 2³ = 2340673 is a prime.

It is a super-2 number, since 2×2340681² = 10957575087522, which contains 22 as substring.

2340681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2340661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7815 + ... + 8108.

It is an arithmetic number, because the mean of its divisors is an integer number (302556).

2^2340681 is an apocalyptic number.

2340681 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2340681 is a deficient number, since it is larger than the sum of its proper divisors (1289991).

2340681 is a wasteful number, since it uses less digits than its factorization.

2340681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15940 (or 15933 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2340681 is about 1529.9284296986. The cubic root of 2340681 is about 132.7743171713.

Subtracting from 2340681 its reverse (1860432), we obtain a square (480249 = 693²).

It can be divided in two parts, 23 and 40681, that added together give a palindrome (40704).

The spelling of 2340681 in words is "two million, three hundred forty thousand, six hundred eighty-one".