422440009 has 4 divisors (see below), whose sum is σ = 422563840. Its totient is φ = 422316180.

The previous prime is 422440001. The next prime is 422440049. The reversal of 422440009 is 900044224.

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 422440009 - 2³ = 422440001 is a prime.

It is a super-2 number, since 2×422440009² = 356911122407840162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422440001) 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, 56649 + ... + 63670.

It is an arithmetic number, because the mean of its divisors is an integer number (105640960).

Almost surely, 2^422440009 is an apocalyptic number.

It is an amenable number.

422440009 is a deficient number, since it is larger than the sum of its proper divisors (123831).

422440009 is a wasteful number, since it uses less digits than its factorization.

422440009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123830.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 422440009 is about 20553.3454454500. The cubic root of 422440009 is about 750.3346707866.

The spelling of 422440009 in words is "four hundred twenty-two million, four hundred forty thousand, nine".