266802040 has 64 divisors (see below), whose sum is σ = 615353760. Its totient is φ = 104079360.

The previous prime is 266802037. The next prime is 266802073. The reversal of 266802040 is 40208662.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302400 + ... + 303280.

Almost surely, 2^266802040 is an apocalyptic number.

266802040 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 266802040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307676880).

266802040 is an abundant number, since it is smaller than the sum of its proper divisors (348551720).

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

266802040 is a wasteful number, since it uses less digits than its factorization.

266802040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 266802040 is about 16334.0760375358. The cubic root of 266802040 is about 643.7684892418.

The spelling of 266802040 in words is "two hundred sixty-six million, eight hundred two thousand, forty".