267748728 has 96 divisors (see below), whose sum is σ = 730477440. Its totient is φ = 81744000.

The previous prime is 267748717. The next prime is 267748751. The reversal of 267748728 is 827847762.

267748728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 1017925 + ... + 1018187.

It is an arithmetic number, because the mean of its divisors is an integer number (7609140).

Almost surely, 2^267748728 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 267748728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365238720).

267748728 is an abundant number, since it is smaller than the sum of its proper divisors (462728712).

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

267748728 is a wasteful number, since it uses less digits than its factorization.

267748728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 532 counting only the distinct ones).

The product of its digits is 2107392, while the sum is 51.

The square root of 267748728 is about 16363.0293038911. The cubic root of 267748728 is about 644.5290137750.

The spelling of 267748728 in words is "two hundred sixty-seven million, seven hundred forty-eight thousand, seven hundred twenty-eight".