266878248 has 128 divisors (see below), whose sum is σ = 830995200. Its totient is φ = 69543936.

The previous prime is 266878231. The next prime is 266878273. The reversal of 266878248 is 842878662.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 266878248.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193690 + ... + 195062.

It is an arithmetic number, because the mean of its divisors is an integer number (6492150).

Almost surely, 2^266878248 is an apocalyptic number.

266878248 is a gapful number since it is divisible by the number (28) 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 266878248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415497600).

266878248 is an abundant number, since it is smaller than the sum of its proper divisors (564116952).

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

266878248 is a wasteful number, since it uses less digits than its factorization.

266878248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491 (or 1487 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 51.

The square root of 266878248 is about 16336.4086628610. The cubic root of 266878248 is about 643.8297776770.

The spelling of 266878248 in words is "two hundred sixty-six million, eight hundred seventy-eight thousand, two hundred forty-eight".