243332426 has 4 divisors (see below), whose sum is σ = 364998642. Its totient is φ = 121666212.

The previous prime is 243332371. The next prime is 243332443. The reversal of 243332426 is 624233342.

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., 214183225 + 29149201 = 14635^2 + 5399^2 .

It is a Curzon 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 as a sum of consecutive naturals, namely, 60833105 + ... + 60833108.

Almost surely, 2^243332426 is an apocalyptic number.

243332426 is a deficient number, since it is larger than the sum of its proper divisors (121666216).

243332426 is a wasteful number, since it uses less digits than its factorization.

243332426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121666215.

The product of its digits is 20736, while the sum is 29.

The square root of 243332426 is about 15599.1161929130. The cubic root of 243332426 is about 624.3095744342.

Adding to 243332426 its reverse (624233342), we get a palindrome (867565768).

The spelling of 243332426 in words is "two hundred forty-three million, three hundred thirty-two thousand, four hundred twenty-six".