422365 has 8 divisors (see below), whose sum is σ = 536760. Its totient is φ = 317952.

The previous prime is 422363. The next prime is 422369. The reversal of 422365 is 563224.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 39204 + 383161 = 198^2 + 619^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 422365 - 2¹ = 422363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422363) 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, 2400 + ... + 2569.

It is an arithmetic number, because the mean of its divisors is an integer number (67095).

2⁴²²³⁶⁵ is an apocalyptic number.

It is an amenable number.

422365 is a deficient number, since it is larger than the sum of its proper divisors (114395).

422365 is a wasteful number, since it uses less digits than its factorization.

422365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991.

The product of its digits is 1440, while the sum is 22.

The square root of 422365 is about 649.8961455494. The cubic root of 422365 is about 75.0290258023.

Adding to 422365 its reverse (563224), we get a palindrome (985589).

It can be divided in two parts, 422 and 365, that added together give a palindrome (787).

The spelling of 422365 in words is "four hundred twenty-two thousand, three hundred sixty-five".