243042322 has 4 divisors (see below), whose sum is σ = 364563486. Its totient is φ = 121521160.

The previous prime is 243042277. The next prime is 243042329. The reversal of 243042322 is 223240342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 155226681 + 87815641 = 12459^2 + 9371^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 243042293 and 243042302.

It is not an unprimeable number, because it can be changed into a prime (243042329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60760579 + ... + 60760582.

Almost surely, 2^243042322 is an apocalyptic number.

243042322 is a deficient number, since it is larger than the sum of its proper divisors (121521164).

243042322 is a wasteful number, since it uses less digits than its factorization.

243042322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121521163.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 243042322 is about 15589.8146878018. The cubic root of 243042322 is about 624.0613725112.

Adding to 243042322 its reverse (223240342), we get a palindrome (466282664).

The spelling of 243042322 in words is "two hundred forty-three million, forty-two thousand, three hundred twenty-two".