243434204 has 24 divisors (see below), whose sum is σ = 462142128. Its totient is φ = 111530880.

The previous prime is 243434201. The next prime is 243434239. The reversal of 243434204 is 402434342.

It is a super-2 number, since 2×243434204² = 118520423354227232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243434201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9962 + ... + 24209.

It is an arithmetic number, because the mean of its divisors is an integer number (19255922).

Almost surely, 2^243434204 is an apocalyptic number.

It is an amenable number.

243434204 is a deficient number, since it is larger than the sum of its proper divisors (218707924).

243434204 is a wasteful number, since it uses less digits than its factorization.

243434204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34325 (or 34323 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 243434204 is about 15602.3781520639. The cubic root of 243434204 is about 624.3966050641.

Adding to 243434204 its reverse (402434342), we get a palindrome (645868546).

The spelling of 243434204 in words is "two hundred forty-three million, four hundred thirty-four thousand, two hundred four".