422340398409 has 4 divisors (see below), whose sum is σ = 563120531216. Its totient is φ = 281560265604.

The previous prime is 422340398401. The next prime is 422340398461. The reversal of 422340398409 is 904893043224.

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 422340398409 - 2³ = 422340398401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (422340398401) 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, 70390066399 + ... + 70390066404.

It is an arithmetic number, because the mean of its divisors is an integer number (140780132804).

Almost surely, 2^422340398409 is an apocalyptic number.

It is an amenable number.

422340398409 is a deficient number, since it is larger than the sum of its proper divisors (140780132807).

422340398409 is a wasteful number, since it uses less digits than its factorization.

422340398409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140780132806.

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 422340398409 in words is "four hundred twenty-two billion, three hundred forty million, three hundred ninety-eight thousand, four hundred nine".