276420 has 48 divisors (see below), whose sum is σ = 822528. Its totient is φ = 69120.

The previous prime is 276401. The next prime is 276439. The reversal of 276420 is 24672.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (276401) and next prime (276439).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 885 + ... + 1155.

It is an arithmetic number, because the mean of its divisors is an integer number (17136).

2²⁷⁶⁴²⁰ is an apocalyptic number.

276420 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 276420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411264).

276420 is an abundant number, since it is smaller than the sum of its proper divisors (546108).

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

276420 is a wasteful number, since it uses less digits than its factorization.

276420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 276420 is about 525.7565976761. The cubic root of 276420 is about 65.1413099268.

It can be divided in two parts, 276 and 420, that added together give a palindrome (696).

The spelling of 276420 in words is "two hundred seventy-six thousand, four hundred twenty".