2388909 has 4 divisors (see below), whose sum is σ = 3185216. Its totient is φ = 1592604.

The previous prime is 2388907. The next prime is 2388913. The reversal of 2388909 is 9098832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2388909 - 2¹ = 2388907 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2388901) 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, 398149 + ... + 398154.

It is an arithmetic number, because the mean of its divisors is an integer number (796304).

2^2388909 is an apocalyptic number.

It is an amenable number.

2388909 is a deficient number, since it is larger than the sum of its proper divisors (796307).

2388909 is an equidigital number, since it uses as much as digits as its factorization.

2388909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796306.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 2388909 is about 1545.6095884796. The cubic root of 2388909 is about 133.6800303663.

The spelling of 2388909 in words is "two million, three hundred eighty-eight thousand, nine hundred nine".