423300234 has 64 divisors (see below), whose sum is σ = 1013575680. Its totient is φ = 115230720.

The previous prime is 423300223. The next prime is 423300253. The reversal of 423300234 is 432003324.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 423300234.

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 31 ways as a sum of consecutive naturals, for example, 299722 + ... + 301130.

It is an arithmetic number, because the mean of its divisors is an integer number (15837120).

Almost surely, 2^423300234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423300234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506787840).

423300234 is an abundant number, since it is smaller than the sum of its proper divisors (590275446).

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

423300234 is a wasteful number, since it uses less digits than its factorization.

423300234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755.

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

The square root of 423300234 is about 20574.2614448247. The cubic root of 423300234 is about 750.8436337980.

Adding to 423300234 its reverse (432003324), we get a palindrome (855303558).

The spelling of 423300234 in words is "four hundred twenty-three million, three hundred thousand, two hundred thirty-four".