423435330 has 128 divisors (see below), whose sum is σ = 1209600000. Its totient is φ = 105084864.

The previous prime is 423435323. The next prime is 423435367. The reversal of 423435330 is 33534324.

It is a happy number.

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 = 423435294 and 423435303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 301971 + ... + 303369.

It is an arithmetic number, because the mean of its divisors is an integer number (9450000).

Almost surely, 2^423435330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423435330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604800000).

423435330 is an abundant number, since it is smaller than the sum of its proper divisors (786164670).

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

423435330 is a wasteful number, since it uses less digits than its factorization.

423435330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493 (or 1487 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

The square root of 423435330 is about 20577.5443141304. The cubic root of 423435330 is about 750.9235023910.

Adding to 423435330 its reverse (33534324), we get a palindrome (456969654).

The spelling of 423435330 in words is "four hundred twenty-three million, four hundred thirty-five thousand, three hundred thirty".