2048009 has 4 divisors (see below), whose sum is σ = 2118660. Its totient is φ = 1977360.

The previous prime is 2048003. The next prime is 2048017. The reversal of 2048009 is 9008402.

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 1452025 + 595984 = 1205^2 + 772^2 .

It is a cyclic number.

It is not a de Polignac number, because 2048009 - 2⁴ = 2047993 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 (2048003) 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, 35282 + ... + 35339.

It is an arithmetic number, because the mean of its divisors is an integer number (529665).

2^2048009 is an apocalyptic number.

2048009 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2048009 is a deficient number, since it is larger than the sum of its proper divisors (70651).

2048009 is an equidigital number, since it uses as much as digits as its factorization.

2048009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70650.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2048009 is about 1431.0866500670. The cubic root of 2048009 is about 126.9922701807.

The spelling of 2048009 in words is "two million, forty-eight thousand, nine".