423003432 has 64 divisors (see below), whose sum is σ = 1094745600. Its totient is φ = 136062720.

The previous prime is 423003389. The next prime is 423003433. The reversal of 423003432 is 234300324.

It is a junction number, because it is equal to n+sod(n) for n = 423003399 and 423003408.

It is not an unprimeable number, because it can be changed into a prime (423003433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378138 + ... + 379254.

It is an arithmetic number, because the mean of its divisors is an integer number (17105400).

Almost surely, 2^423003432 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 423003432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547372800).

423003432 is an abundant number, since it is smaller than the sum of its proper divisors (671742168).

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

423003432 is a wasteful number, since it uses less digits than its factorization.

423003432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666 (or 1662 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 423003432 is about 20567.0472358090. The cubic root of 423003432 is about 750.6681051151.

Adding to 423003432 its reverse (234300324), we get a palindrome (657303756).

The spelling of 423003432 in words is "four hundred twenty-three million, three thousand, four hundred thirty-two".