2400659 has 4 divisors (see below), whose sum is σ = 2407104. Its totient is φ = 2394216.

The previous prime is 2400623. The next prime is 2400661. The reversal of 2400659 is 9560042.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2400659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2400259) 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, 2627 + ... + 3420.

It is an arithmetic number, because the mean of its divisors is an integer number (601776).

2^2400659 is an apocalyptic number.

2400659 is a deficient number, since it is larger than the sum of its proper divisors (6445).

2400659 is an equidigital number, since it uses as much as digits as its factorization.

2400659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6444.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2400659 is about 1549.4060152200. The cubic root of 2400659 is about 133.8988432371.

The spelling of 2400659 in words is "two million, four hundred thousand, six hundred fifty-nine".