243430430 has 16 divisors (see below), whose sum is σ = 444715920. Its totient is φ = 95918592.

The previous prime is 243430423. The next prime is 243430469. The reversal of 243430430 is 34034342.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 243430396 and 243430405.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 180995 + ... + 182334.

It is an arithmetic number, because the mean of its divisors is an integer number (27794745).

Almost surely, 2^243430430 is an apocalyptic number.

243430430 is a deficient number, since it is larger than the sum of its proper divisors (201285490).

243430430 is a wasteful number, since it uses less digits than its factorization.

243430430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363403.

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

The square root of 243430430 is about 15602.2572084939. The cubic root of 243430430 is about 624.3933783401.

Adding to 243430430 its reverse (34034342), we get a palindrome (277464772).

The spelling of 243430430 in words is "two hundred forty-three million, four hundred thirty thousand, four hundred thirty".