266834460 has 96 divisors (see below), whose sum is σ = 764225280. Its totient is φ = 69549568.

The previous prime is 266834443. The next prime is 266834467. The reversal of 266834460 is 64438662.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266834467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 571147 + ... + 571613.

It is an arithmetic number, because the mean of its divisors is an integer number (7960680).

Almost surely, 2^266834460 is an apocalyptic number.

266834460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266834460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382112640).

266834460 is an abundant number, since it is smaller than the sum of its proper divisors (497390820).

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

266834460 is a wasteful number, since it uses less digits than its factorization.

266834460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 266834460 is about 16335.0684112433. The cubic root of 266834460 is about 643.7945636665.

It can be divided in two parts, 2668 and 34460, that added together give a triangular number (37128 = T₂₇₂).

The spelling of 266834460 in words is "two hundred sixty-six million, eight hundred thirty-four thousand, four hundred sixty".