266078290 has 16 divisors (see below), whose sum is σ = 479127168. Its totient is φ = 106389936.

The previous prime is 266078287. The next prime is 266078297. The reversal of 266078290 is 92870662.

It is not an unprimeable number, because it can be changed into a prime (266078297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45049 + ... + 50611.

It is an arithmetic number, because the mean of its divisors is an integer number (29945448).

Almost surely, 2^266078290 is an apocalyptic number.

266078290 is a deficient number, since it is larger than the sum of its proper divisors (213048878).

266078290 is a wasteful number, since it uses less digits than its factorization.

266078290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10353.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 266078290 is about 16311.9063876666. The cubic root of 266078290 is about 643.1858482882.

The spelling of 266078290 in words is "two hundred sixty-six million, seventy-eight thousand, two hundred ninety".