423232420 has 96 divisors (see below), whose sum is σ = 984566016. Its totient is φ = 151872000.

The previous prime is 423232379. The next prime is 423232427. The reversal of 423232420 is 24232324.

It is a junction number, because it is equal to n+sod(n) for n = 423232391 and 423232400.

It is not an unprimeable number, because it can be changed into a prime (423232427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1864347 + ... + 1864573.

It is an arithmetic number, because the mean of its divisors is an integer number (10255896).

Almost surely, 2^423232420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423232420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492283008).

423232420 is an abundant number, since it is smaller than the sum of its proper divisors (561333596).

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

423232420 is a wasteful number, since it uses less digits than its factorization.

423232420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 423232420 is about 20572.6133488189. The cubic root of 423232420 is about 750.8035358365.

Adding to 423232420 its reverse (24232324), we get a palindrome (447464744).

The spelling of 423232420 in words is "four hundred twenty-three million, two hundred thirty-two thousand, four hundred twenty".