266715072 has 224 divisors, whose sum is σ = 873922560. Its totient is φ = 79211520.

The previous prime is 266715067. The next prime is 266715079. The reversal of 266715072 is 270517662.

It is a super-2 number, since 2×266715072² = 142273859263930368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266715079) 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, 696193 + ... + 696575.

It is an arithmetic number, because the mean of its divisors is an integer number (3901440).

Almost surely, 2^266715072 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 266715072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436961280).

266715072 is an abundant number, since it is smaller than the sum of its proper divisors (607207488).

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

266715072 is a wasteful number, since it uses less digits than its factorization.

266715072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 266715072 is about 16331.4136558964. The cubic root of 266715072 is about 643.6985330771.

The spelling of 266715072 in words is "two hundred sixty-six million, seven hundred fifteen thousand, seventy-two".