276340 has 24 divisors (see below), whose sum is σ = 596232. Its totient is φ = 107520.

The previous prime is 276337. The next prime is 276343. The reversal of 276340 is 43672.

276340 = T₉₅ + T₉₆ + ... + T₁₃₅.

It is an interprime number because it is at equal distance from previous prime (276337) and next prime (276343).

It can be written as a sum of positive squares in 4 ways, for example, as 1764 + 274576 = 42^2 + 524^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276343) 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, 652 + ... + 988.

It is an arithmetic number, because the mean of its divisors is an integer number (24843).

276340 is a Friedman number, since it can be written as 20*((6*4)^3-7), using all its digits and the basic arithmetic operations.

2²⁷⁶³⁴⁰ is an apocalyptic number.

276340 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 276340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298116).

276340 is an abundant number, since it is smaller than the sum of its proper divisors (319892).

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

276340 is a wasteful number, since it uses less digits than its factorization.

276340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 276340 is about 525.6805113374. The cubic root of 276340 is about 65.1350250371.

It can be divided in two parts, 276 and 340, that added together give a palindrome (616).

The spelling of 276340 in words is "two hundred seventy-six thousand, three hundred forty".