266000398 has 16 divisors (see below), whose sum is σ = 412798464. Its totient is φ = 128420280.

The previous prime is 266000369. The next prime is 266000417. The reversal of 266000398 is 893000662.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24361 + ... + 33547.

It is an arithmetic number, because the mean of its divisors is an integer number (25799904).

Almost surely, 2^266000398 is an apocalyptic number.

266000398 is a deficient number, since it is larger than the sum of its proper divisors (146798066).

266000398 is a wasteful number, since it uses less digits than its factorization.

266000398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9687.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 266000398 is about 16309.5186317684. The cubic root of 266000398 is about 643.1230798933.

The spelling of 266000398 in words is "two hundred sixty-six million, three hundred ninety-eight", and thus it is an aban number.