266386994 has 8 divisors (see below), whose sum is σ = 400068480. Its totient is φ = 133030836.

The previous prime is 266386993. The next prime is 266387003. The reversal of 266386994 is 499683662.

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

It is not an unprimeable number, because it can be changed into a prime (266386993) 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, 79274 + ... + 82565.

It is an arithmetic number, because the mean of its divisors is an integer number (50008560).

Almost surely, 2^266386994 is an apocalyptic number.

266386994 is a deficient number, since it is larger than the sum of its proper divisors (133681486).

266386994 is a wasteful number, since it uses less digits than its factorization.

266386994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162664.

The product of its digits is 3359232, while the sum is 53.

The square root of 266386994 is about 16321.3661805622. The cubic root of 266386994 is about 643.4344935348.

The spelling of 266386994 in words is "two hundred sixty-six million, three hundred eighty-six thousand, nine hundred ninety-four".