422431013 has 4 divisors (see below), whose sum is σ = 424765068. Its totient is φ = 420096960.

The previous prime is 422431003. The next prime is 422431019. The reversal of 422431013 is 310134224.

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 101949409 + 320481604 = 10097^2 + 17902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422431013 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 (422431019) 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, 1166756 + ... + 1167117.

It is an arithmetic number, because the mean of its divisors is an integer number (106191267).

Almost surely, 2^422431013 is an apocalyptic number.

It is an amenable number.

422431013 is a deficient number, since it is larger than the sum of its proper divisors (2334055).

422431013 is a wasteful number, since it uses less digits than its factorization.

422431013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334054.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 422431013 is about 20553.1265991333. The cubic root of 422431013 is about 750.3293445402.

Adding to 422431013 its reverse (310134224), we get a palindrome (732565237).

The spelling of 422431013 in words is "four hundred twenty-two million, four hundred thirty-one thousand, thirteen".