423236165 has 24 divisors (see below), whose sum is σ = 588585312. Its totient is φ = 289690880.

The previous prime is 423236161. The next prime is 423236221. The reversal of 423236165 is 561632324.

It is not a de Polignac number, because 423236165 - 2² = 423236161 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 (423236161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2582 + ... + 29208.

It is an arithmetic number, because the mean of its divisors is an integer number (24524388).

Almost surely, 2^423236165 is an apocalyptic number.

It is an amenable number.

423236165 is a deficient number, since it is larger than the sum of its proper divisors (165349147).

423236165 is a wasteful number, since it uses less digits than its factorization.

423236165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26677 (or 26660 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 423236165 is about 20572.7043676810. The cubic root of 423236165 is about 750.8057503415.

Adding to 423236165 its reverse (561632324), we get a palindrome (984868489).

The spelling of 423236165 in words is "four hundred twenty-three million, two hundred thirty-six thousand, one hundred sixty-five".