266242246 has 4 divisors (see below), whose sum is σ = 399363372. Its totient is φ = 133121122.

The previous prime is 266242217. The next prime is 266242271. The reversal of 266242246 is 642242662.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66560560 + ... + 66560563.

It is an arithmetic number, because the mean of its divisors is an integer number (99840843).

Almost surely, 2^266242246 is an apocalyptic number.

266242246 is a deficient number, since it is larger than the sum of its proper divisors (133121126).

266242246 is a wasteful number, since it uses less digits than its factorization.

266242246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133121125.

The product of its digits is 55296, while the sum is 34.

The square root of 266242246 is about 16316.9312678579. The cubic root of 266242246 is about 643.3179303736.

The spelling of 266242246 in words is "two hundred sixty-six million, two hundred forty-two thousand, two hundred forty-six".