266782672 has 40 divisors (see below), whose sum is σ = 561901536. Its totient is φ = 121969536.

The previous prime is 266782657. The next prime is 266782673. The reversal of 266782672 is 276287662.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266782673) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16263 + ... + 28249.

Almost surely, 2^266782672 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 266782672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280950768).

266782672 is an abundant number, since it is smaller than the sum of its proper divisors (295118864).

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

266782672 is a wasteful number, since it uses less digits than its factorization.

266782672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12115 (or 12109 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The square root of 266782672 is about 16333.4831557754. The cubic root of 266782672 is about 643.7529111377.

The spelling of 266782672 in words is "two hundred sixty-six million, seven hundred eighty-two thousand, six hundred seventy-two".