243426466 has 4 divisors (see below), whose sum is σ = 365139702. Its totient is φ = 121713232.

The previous prime is 243426431. The next prime is 243426473. The reversal of 243426466 is 664624342.

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., 211266225 + 32160241 = 14535^2 + 5671^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60856615 + ... + 60856618.

Almost surely, 2^243426466 is an apocalyptic number.

243426466 is a deficient number, since it is larger than the sum of its proper divisors (121713236).

243426466 is a wasteful number, since it uses less digits than its factorization.

243426466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121713235.

The product of its digits is 165888, while the sum is 37.

The square root of 243426466 is about 15602.1301750755. The cubic root of 243426466 is about 624.3899891325.

It can be divided in two parts, 2434 and 26466, that added together give a square (28900 = 170²).

The spelling of 243426466 in words is "two hundred forty-three million, four hundred twenty-six thousand, four hundred sixty-six".