2340643 has 4 divisors (see below), whose sum is σ = 2343960. Its totient is φ = 2337328.

The previous prime is 2340617. The next prime is 2340659. The reversal of 2340643 is 3460432.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2340643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2340673) 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, 130 + ... + 2167.

It is an arithmetic number, because the mean of its divisors is an integer number (585990).

2^2340643 is an apocalyptic number.

2340643 is a deficient number, since it is larger than the sum of its proper divisors (3317).

2340643 is a wasteful number, since it uses less digits than its factorization.

2340643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 2340643 is about 1529.9160107666. The cubic root of 2340643 is about 132.7735986552.

The spelling of 2340643 in words is "two million, three hundred forty thousand, six hundred forty-three".