2340689 has 4 divisors (see below), whose sum is σ = 2520756. Its totient is φ = 2160624.

The previous prime is 2340673. The next prime is 2340697. The reversal of 2340689 is 9860432.

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 1227664 + 1113025 = 1108^2 + 1055^2 .

It is a cyclic number.

It is not a de Polignac number, because 2340689 - 2⁴ = 2340673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2340659) 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, 90014 + ... + 90039.

It is an arithmetic number, because the mean of its divisors is an integer number (630189).

2^2340689 is an apocalyptic number.

It is an amenable number.

2340689 is a deficient number, since it is larger than the sum of its proper divisors (180067).

2340689 is a wasteful number, since it uses less digits than its factorization.

2340689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180066.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2340689 is about 1529.9310441977. The cubic root of 2340689 is about 132.7744684369.

The spelling of 2340689 in words is "two million, three hundred forty thousand, six hundred eighty-nine".