422404013 has 4 divisors (see below), whose sum is σ = 422580768. Its totient is φ = 422227260.

The previous prime is 422403997. The next prime is 422404019. The reversal of 422404013 is 310404224.

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 422404013 - 2⁴ = 422403997 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 (422404019) 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, 84743 + ... + 89588.

It is an arithmetic number, because the mean of its divisors is an integer number (105645192).

Almost surely, 2^422404013 is an apocalyptic number.

It is an amenable number.

422404013 is a deficient number, since it is larger than the sum of its proper divisors (176755).

422404013 is a wasteful number, since it uses less digits than its factorization.

422404013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176754.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 422404013 is about 20552.4697542655. The cubic root of 422404013 is about 750.3133582424.

Adding to 422404013 its reverse (310404224), we get a palindrome (732808237).

The spelling of 422404013 in words is "four hundred twenty-two million, four hundred four thousand, thirteen".