243434030 has 32 divisors (see below), whose sum is σ = 501418944. Its totient is φ = 83356416.

The previous prime is 243434029. The next prime is 243434039. The reversal of 243434030 is 30434342.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 243433987 and 243434005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243434039) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 69194 + ... + 72626.

It is an arithmetic number, because the mean of its divisors is an integer number (15669342).

Almost surely, 2^243434030 is an apocalyptic number.

243434030 is an abundant number, since it is smaller than the sum of its proper divisors (257984914).

243434030 is a wasteful number, since it uses less digits than its factorization.

243434030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4460.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 243434030 is about 15602.3725759898. The cubic root of 243434030 is about 624.3964562969.

Adding to 243434030 its reverse (30434342), we get a palindrome (273868372).

The spelling of 243434030 in words is "two hundred forty-three million, four hundred thirty-four thousand, thirty".