422144013 has 8 divisors (see below), whose sum is σ = 562970848. Its totient is φ = 281373264.

The previous prime is 422143987. The next prime is 422144057. The reversal of 422144013 is 310441224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 422144013 - 2¹² = 422139917 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 (422140013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8895 + ... + 30387.

It is an arithmetic number, because the mean of its divisors is an integer number (70371356).

Almost surely, 2^422144013 is an apocalyptic number.

It is an amenable number.

422144013 is a deficient number, since it is larger than the sum of its proper divisors (140826835).

422144013 is a wasteful number, since it uses less digits than its factorization.

422144013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28043.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 422144013 is about 20546.1435067508. The cubic root of 422144013 is about 750.1593812389.

Adding to 422144013 its reverse (310441224), we get a palindrome (732585237).

The spelling of 422144013 in words is "four hundred twenty-two million, one hundred forty-four thousand, thirteen".