243042604 has 48 divisors (see below), whose sum is σ = 528209920. Its totient is φ = 95489280.

The previous prime is 243042601. The next prime is 243042619. The reversal of 243042604 is 406240342.

243042604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (243042601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9124 + ... + 23860.

Almost surely, 2^243042604 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 243042604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264104960).

243042604 is an abundant number, since it is smaller than the sum of its proper divisors (285167316).

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

243042604 is a wasteful number, since it uses less digits than its factorization.

243042604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14798 (or 14796 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 243042604 is about 15589.8237321658. The cubic root of 243042604 is about 624.0616138755.

Adding to 243042604 its reverse (406240342), we get a palindrome (649282946).

The spelling of 243042604 in words is "two hundred forty-three million, forty-two thousand, six hundred four".