266998938 has 8 divisors (see below), whose sum is σ = 533997888. Its totient is φ = 88999644.

The previous prime is 266998933. The next prime is 266998943. The reversal of 266998938 is 839899662.

266998938 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (266998933) and next prime (266998943).

It is a sphenic number, since it is the product of 3 distinct primes.

266998938 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (266998933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22249906 + ... + 22249917.

It is an arithmetic number, because the mean of its divisors is an integer number (66749736).

Almost surely, 2^266998938 is an apocalyptic number.

266998938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266998938 is a wasteful number, since it uses less digits than its factorization.

266998938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44499828.

The product of its digits is 10077696, while the sum is 60.

The square root of 266998938 is about 16340.1021416636. The cubic root of 266998938 is about 643.9268158160.

The spelling of 266998938 in words is "two hundred sixty-six million, nine hundred ninety-eight thousand, nine hundred thirty-eight".