423240204 has 72 divisors (see below), whose sum is σ = 1050248752. Its totient is φ = 132612480.

The previous prime is 423240187. The next prime is 423240221. The reversal of 423240204 is 402042324.

It is an interprime number because it is at equal distance from previous prime (423240187) and next prime (423240221).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 386682 + ... + 387774.

Almost surely, 2^423240204 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 423240204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525124376).

423240204 is an abundant number, since it is smaller than the sum of its proper divisors (627008548).

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

423240204 is a wasteful number, since it uses less digits than its factorization.

423240204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1182 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 423240204 is about 20572.8025314977. The cubic root of 423240204 is about 750.8081386808.

Adding to 423240204 its reverse (402042324), we get a palindrome (825282528).

The spelling of 423240204 in words is "four hundred twenty-three million, two hundred forty thousand, two hundred four".