243426266 has 16 divisors (see below), whose sum is σ = 374529960. Its totient is φ = 118590720.

The previous prime is 243426257. The next prime is 243426277. The reversal of 243426266 is 662624342.

243426266 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 98585041 + 144841225 = 9929^2 + 12035^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86270 + ... + 89046.

Almost surely, 2^243426266 is an apocalyptic number.

243426266 is a deficient number, since it is larger than the sum of its proper divisors (131103694).

243426266 is a wasteful number, since it uses less digits than its factorization.

243426266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889.

The product of its digits is 82944, while the sum is 35.

The square root of 243426266 is about 15602.1237656929. The cubic root of 243426266 is about 624.3898181321.

The spelling of 243426266 in words is "two hundred forty-three million, four hundred twenty-six thousand, two hundred sixty-six".