243120346 has 16 divisors (see below), whose sum is σ = 416983680. Its totient is φ = 104142960.

The previous prime is 243120341. The next prime is 243120359. The reversal of 243120346 is 643021342.

It is a self number, because there is not a number n which added to its sum of digits gives 243120346.

It is not an unprimeable number, because it can be changed into a prime (243120341) 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, 43140 + ... + 48448.

It is an arithmetic number, because the mean of its divisors is an integer number (26061480).

Almost surely, 2^243120346 is an apocalyptic number.

243120346 is a deficient number, since it is larger than the sum of its proper divisors (173863334).

243120346 is a wasteful number, since it uses less digits than its factorization.

243120346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8589.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 243120346 is about 15592.3168900584. The cubic root of 243120346 is about 624.1281462793.

Adding to 243120346 its reverse (643021342), we get a palindrome (886141688).

The spelling of 243120346 in words is "two hundred forty-three million, one hundred twenty thousand, three hundred forty-six".