2438909 has 4 divisors (see below), whose sum is σ = 2660640. Its totient is φ = 2217180.

The previous prime is 2438903. The next prime is 2438911. The reversal of 2438909 is 9098342.

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 a cyclic number.

It is not a de Polignac number, because 2438909 - 2⁴ = 2438893 is a prime.

It is a super-2 number, since 2×2438909² = 11896554220562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2438903) 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, 110849 + ... + 110870.

It is an arithmetic number, because the mean of its divisors is an integer number (665160).

2^2438909 is an apocalyptic number.

It is an amenable number.

2438909 is a deficient number, since it is larger than the sum of its proper divisors (221731).

2438909 is a wasteful number, since it uses less digits than its factorization.

2438909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221730.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 2438909 is about 1561.7006755457. The cubic root of 2438909 is about 134.6062417485.

The spelling of 2438909 in words is "two million, four hundred thirty-eight thousand, nine hundred nine".