266834394 has 24 divisors (see below), whose sum is σ = 598078260. Its totient is φ = 85877568.

The previous prime is 266834389. The next prime is 266834411. The reversal of 266834394 is 493438662.

It can be written as a sum of positive squares in 2 ways, for example, as 263900025 + 2934369 = 16245^2 + 1713^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255067 + ... + 256110.

Almost surely, 2^266834394 is an apocalyptic number.

266834394 is an abundant number, since it is smaller than the sum of its proper divisors (331243866).

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

266834394 is a wasteful number, since it uses less digits than its factorization.

266834394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511214 (or 511211 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 266834394 is about 16335.0663910497. The cubic root of 266834394 is about 643.7945105868.

The spelling of 266834394 in words is "two hundred sixty-six million, eight hundred thirty-four thousand, three hundred ninety-four".