243421202 has 4 divisors (see below), whose sum is σ = 365131806. Its totient is φ = 121710600.

The previous prime is 243421193. The next prime is 243421247. The reversal of 243421202 is 202124342.

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., 165611161 + 77810041 = 12869^2 + 8821^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60855299 + ... + 60855302.

Almost surely, 2^243421202 is an apocalyptic number.

243421202 is a deficient number, since it is larger than the sum of its proper divisors (121710604).

243421202 is a wasteful number, since it uses less digits than its factorization.

243421202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121710603.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 243421202 is about 15601.9614792500. The cubic root of 243421202 is about 624.3854883721.

Adding to 243421202 its reverse (202124342), we get a palindrome (445545544).

The spelling of 243421202 in words is "two hundred forty-three million, four hundred twenty-one thousand, two hundred two".