266343994 has 8 divisors (see below), whose sum is σ = 456589728. Its totient is φ = 114147420.

The previous prime is 266343989. The next prime is 266344003. The reversal of 266343994 is 499343662.

266343994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9512272 + ... + 9512299.

It is an arithmetic number, because the mean of its divisors is an integer number (57073716).

Almost surely, 2^266343994 is an apocalyptic number.

266343994 is a deficient number, since it is larger than the sum of its proper divisors (190245734).

266343994 is a wasteful number, since it uses less digits than its factorization.

266343994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19024580.

The product of its digits is 839808, while the sum is 46.

The square root of 266343994 is about 16320.0488357112. The cubic root of 266343994 is about 643.3998707583.

It can be divided in two parts, 26634 and 3994, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 266343994 in words is "two hundred sixty-six million, three hundred forty-three thousand, nine hundred ninety-four".