826210266 has 48 divisors (see below), whose sum is σ = 1927183680. Its totient is φ = 235448640.

The previous prime is 826210247. The next prime is 826210271. The reversal of 826210266 is 662012628.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116811 + ... + 123681.

It is an arithmetic number, because the mean of its divisors is an integer number (40149660).

Almost surely, 2^826210266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 826210266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (963591840).

826210266 is an abundant number, since it is smaller than the sum of its proper divisors (1100973414).

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

826210266 is a wasteful number, since it uses less digits than its factorization.

826210266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7299 (or 7292 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 826210266 is about 28743.8735385473. The cubic root of 826210266 is about 938.3471277778.

It can be divided in two parts, 8262 and 10266, that added together give a triangular number (18528 = T₁₉₂).

The spelling of 826210266 in words is "eight hundred twenty-six million, two hundred ten thousand, two hundred sixty-six".