266994072 has 192 divisors, whose sum is σ = 793877760. Its totient is φ = 80870400.

The previous prime is 266994071. The next prime is 266994107. The reversal of 266994072 is 270499662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266994071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4376922 + ... + 4376982.

It is an arithmetic number, because the mean of its divisors is an integer number (4134780).

Almost surely, 2^266994072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266994072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396938880).

266994072 is an abundant number, since it is smaller than the sum of its proper divisors (526883688).

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

266994072 is a wasteful number, since it uses less digits than its factorization.

266994072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 266994072 is about 16339.9532435072. The cubic root of 266994072 is about 643.9229039815.

The spelling of 266994072 in words is "two hundred sixty-six million, nine hundred ninety-four thousand, seventy-two".