423643269 has 24 divisors (see below), whose sum is σ = 657871200. Its totient is φ = 241790304.

The previous prime is 423643243. The next prime is 423643271. The reversal of 423643269 is 962346324.

It is not a de Polignac number, because 423643269 - 2⁵ = 423643237 is a prime.

It is a super-2 number, since 2×423643269² = 358947238738012722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423643369) 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, 200782 + ... + 202880.

It is an arithmetic number, because the mean of its divisors is an integer number (27411300).

Almost surely, 2^423643269 is an apocalyptic number.

423643269 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

423643269 is a deficient number, since it is larger than the sum of its proper divisors (234227931).

423643269 is a wasteful number, since it uses less digits than its factorization.

423643269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489 (or 3482 counting only the distinct ones).

The product of its digits is 186624, while the sum is 39.

The square root of 423643269 is about 20582.5962648059. The cubic root of 423643269 is about 751.0464024879.

The spelling of 423643269 in words is "four hundred twenty-three million, six hundred forty-three thousand, two hundred sixty-nine".