2311439 has 8 divisors (see below), whose sum is σ = 2635920. Its totient is φ = 2007936.

The previous prime is 2311417. The next prime is 2311451. The reversal of 2311439 is 9341132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2311439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5009 + ... + 5450.

It is an arithmetic number, because the mean of its divisors is an integer number (329490).

2^2311439 is an apocalyptic number.

2311439 is a deficient number, since it is larger than the sum of its proper divisors (324481).

2311439 is a wasteful number, since it uses less digits than its factorization.

2311439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10489.

The product of its digits is 648, while the sum is 23.

The square root of 2311439 is about 1520.3417378997. The cubic root of 2311439 is about 132.2190844482.

The spelling of 2311439 in words is "two million, three hundred eleven thousand, four hundred thirty-nine".