423524430 has 128 divisors (see below), whose sum is σ = 1296552960. Its totient is φ = 96370560.

The previous prime is 423524401. The next prime is 423524447. The reversal of 423524430 is 34425324.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 423524394 and 423524403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 625252 + ... + 625928.

It is an arithmetic number, because the mean of its divisors is an integer number (10129320).

Almost surely, 2^423524430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423524430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648276480).

423524430 is an abundant number, since it is smaller than the sum of its proper divisors (873028530).

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

423524430 is a wasteful number, since it uses less digits than its factorization.

423524430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031 (or 1025 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 423524430 is about 20579.7091816187. The cubic root of 423524430 is about 750.9761689078.

Adding to 423524430 its reverse (34425324), we get a palindrome (457949754).

The spelling of 423524430 in words is "four hundred twenty-three million, five hundred twenty-four thousand, four hundred thirty".