276538768 has 80 divisors (see below), whose sum is σ = 630584640. Its totient is φ = 116121600.

The previous prime is 276538739. The next prime is 276538771. The reversal of 276538768 is 867835672.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 136096 + ... + 138112.

It is an arithmetic number, because the mean of its divisors is an integer number (7882308).

Almost surely, 2^276538768 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 276538768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315292320).

276538768 is an abundant number, since it is smaller than the sum of its proper divisors (354045872).

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

276538768 is a wasteful number, since it uses less digits than its factorization.

276538768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096 (or 2090 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 52.

The square root of 276538768 is about 16629.4548317135. The cubic root of 276538768 is about 651.5063823790.

The spelling of 276538768 in words is "two hundred seventy-six million, five hundred thirty-eight thousand, seven hundred sixty-eight".