276320 has 48 divisors (see below), whose sum is σ = 716688. Its totient is φ = 99840.

The previous prime is 276319. The next prime is 276323. The reversal of 276320 is 23672.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 276292 and 276301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1682 + ... + 1838.

It is an arithmetic number, because the mean of its divisors is an integer number (14931).

2²⁷⁶³²⁰ is an apocalyptic number.

276320 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 276320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358344).

276320 is an abundant number, since it is smaller than the sum of its proper divisors (440368).

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

276320 is a wasteful number, since it uses less digits than its factorization.

276320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 276320 is about 525.6614880320. The cubic root of 276320 is about 65.1334536251.

Adding to 276320 its reverse (23672), we get a palindrome (299992).

The spelling of 276320 in words is "two hundred seventy-six thousand, three hundred twenty".