276380 has 24 divisors (see below), whose sum is σ = 625632. Its totient is φ = 101952.

The previous prime is 276373. The next prime is 276389. The reversal of 276380 is 83672.

276380 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is a super-3 number, since 3×276380³ = 63334608774216000, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276389) 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, 272 + ... + 791.

It is an arithmetic number, because the mean of its divisors is an integer number (26068).

2²⁷⁶³⁸⁰ is an apocalyptic number.

276380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276380 is an abundant number, since it is smaller than the sum of its proper divisors (349252).

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

276380 is a wasteful number, since it uses less digits than its factorization.

276380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085 (or 1083 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 276380 is about 525.7185558833. The cubic root of 276380 is about 65.1381676335.

It can be divided in two parts, 276 and 380, that added together give a palindrome (656).

The spelling of 276380 in words is "two hundred seventy-six thousand, three hundred eighty".