266729472 has 144 divisors (see below), whose sum is σ = 798525000. Its totient is φ = 85671936.

The previous prime is 266729471. The next prime is 266729503. The reversal of 266729472 is 274927662.

266729472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×266729472² = 142289222466797568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266729471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 534279 + ... + 534777.

Almost surely, 2^266729472 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 266729472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399262500).

266729472 is an abundant number, since it is smaller than the sum of its proper divisors (531795528).

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

266729472 is a wasteful number, since it uses less digits than its factorization.

266729472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 533 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 266729472 is about 16331.8545180883. The cubic root of 266729472 is about 643.7101173394.

The spelling of 266729472 in words is "two hundred sixty-six million, seven hundred twenty-nine thousand, four hundred seventy-two".