423243432 has 48 divisors (see below), whose sum is σ = 1148308980. Its totient is φ = 140832000.

The previous prime is 423243391. The next prime is 423243433. The reversal of 423243432 is 234342324.

It can be written as a sum of positive squares in 2 ways, for example, as 413471556 + 9771876 = 20334^2 + 3126^2 .

It is a super-2 number, since 2×423243432² = 358270005462277248, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 423243396 and 423243405.

It is not an unprimeable number, because it can be changed into a prime (423243433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38382 + ... + 48162.

Almost surely, 2^423243432 is an apocalyptic number.

It is an amenable number.

423243432 is an abundant number, since it is smaller than the sum of its proper divisors (725065548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423243432 is a wasteful number, since it uses less digits than its factorization.

423243432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10394 (or 10387 counting only the distinct ones).

The product of its digits is 13824, while the sum is 27.

The square root of 423243432 is about 20572.8809844416. The cubic root of 423243432 is about 750.8100474492.

Adding to 423243432 its reverse (234342324), we get a palindrome (657585756).

The spelling of 423243432 in words is "four hundred twenty-three million, two hundred forty-three thousand, four hundred thirty-two".