422613 has 6 divisors (see below), whose sum is σ = 610454. Its totient is φ = 281736.

The previous prime is 422581. The next prime is 422621. The reversal of 422613 is 316224.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 321489 + 101124 = 567^2 + 318^2 .

It is not a de Polignac number, because 422613 - 2⁵ = 422581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422613.

It is not an unprimeable number, because it can be changed into a prime (422113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23470 + ... + 23487.

2⁴²²⁶¹³ is an apocalyptic number.

It is an amenable number.

422613 is a deficient number, since it is larger than the sum of its proper divisors (187841).

422613 is a wasteful number, since it uses less digits than its factorization.

422613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46963 (or 46960 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 422613 is about 650.0869172657. The cubic root of 422613 is about 75.0437078567.

Adding to 422613 its reverse (316224), we get a palindrome (738837).

It can be divided in two parts, 422 and 613, that added together give a triangular number (1035 = T₄₅).

The spelling of 422613 in words is "four hundred twenty-two thousand, six hundred thirteen".