276080 has 80 divisors (see below), whose sum is σ = 803520. Its totient is φ = 86016.

The previous prime is 276079. The next prime is 276083. The reversal of 276080 is 80672.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9506 + ... + 9534.

It is an arithmetic number, because the mean of its divisors is an integer number (10044).

2²⁷⁶⁰⁸⁰ is an apocalyptic number.

276080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 276080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401760).

276080 is an abundant number, since it is smaller than the sum of its proper divisors (527440).

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

276080 is a wasteful number, since it uses less digits than its factorization.

276080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 276080 is about 525.4331546448. The cubic root of 276080 is about 65.1145907646.

The spelling of 276080 in words is "two hundred seventy-six thousand, eighty".