2340661 has 2 divisors, whose sum is σ = 2340662. Its totient is φ = 2340660.

The previous prime is 2340659. The next prime is 2340673. The reversal of 2340661 is 1660432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1876900 + 463761 = 1370^2 + 681^2 .

It is a cyclic number.

It is not a de Polignac number, because 2340661 - 2¹ = 2340659 is a prime.

Together with 2340659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2340061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170330 + 1170331.

It is an arithmetic number, because the mean of its divisors is an integer number (1170331).

2^2340661 is an apocalyptic number.

It is an amenable number.

2340661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340661 is an equidigital number, since it uses as much as digits as its factorization.

2340661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2340661 is about 1529.9218934312. The cubic root of 2340661 is about 132.7739390059.

The spelling of 2340661 in words is "two million, three hundred forty thousand, six hundred sixty-one".