423346500 has 120 divisors (see below), whose sum is σ = 1381307928. Its totient is φ = 112881600.

The previous prime is 423346471. The next prime is 423346507. The reversal of 423346500 is 5643324.

423346500 is a `hidden beast` number, since 4 + 2 + 3 + 3 + 4 + 650 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5225796 + 418120704 = 2286^2 + 20448^2 .

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

It is not an unprimeable number, because it can be changed into a prime (423346507) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 35274 + ... + 45726.

Almost surely, 2^423346500 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 423346500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690653964).

423346500 is an abundant number, since it is smaller than the sum of its proper divisors (957961428).

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

423346500 is a wasteful number, since it uses less digits than its factorization.

423346500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10484 (or 10463 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 423346500 is about 20575.3857801014. The cubic root of 423346500 is about 750.8709881147.

Adding to 423346500 its reverse (5643324), we get a palindrome (428989824).

The spelling of 423346500 in words is "four hundred twenty-three million, three hundred forty-six thousand, five hundred".