2422009 has 4 divisors (see below), whose sum is σ = 2463120. Its totient is φ = 2380900.

The previous prime is 2421997. The next prime is 2422027. The reversal of 2422009 is 9002242.

It is a happy number.

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 2422009 - 2¹⁵ = 2389241 is a prime.

It is a super-2 number, since 2×2422009² = 11732255192162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2422099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20467 + ... + 20584.

It is an arithmetic number, because the mean of its divisors is an integer number (615780).

2^2422009 is an apocalyptic number.

It is an amenable number.

2422009 is a deficient number, since it is larger than the sum of its proper divisors (41111).

2422009 is an equidigital number, since it uses as much as digits as its factorization.

2422009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41110.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2422009 is about 1556.2805017091. The cubic root of 2422009 is about 134.2946105792.

The spelling of 2422009 in words is "two million, four hundred twenty-two thousand, nine".