276316380 has 96 divisors (see below), whose sum is σ = 871879680. Its totient is φ = 72636480.

The previous prime is 276316357. The next prime is 276316387. The reversal of 276316380 is 83613672.

It is a happy number.

276316380 is a `hidden beast` number, since 276 + 3 + 1 + 6 + 380 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276316387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34737 + ... + 41943.

It is an arithmetic number, because the mean of its divisors is an integer number (9082080).

Almost surely, 2^276316380 is an apocalyptic number.

276316380 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 276316380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435939840).

276316380 is an abundant number, since it is smaller than the sum of its proper divisors (595563300).

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

276316380 is a wasteful number, since it uses less digits than its factorization.

276316380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7296 (or 7288 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 276316380 is about 16622.7669176945. The cubic root of 276316380 is about 651.3316919147.

The spelling of 276316380 in words is "two hundred seventy-six million, three hundred sixteen thousand, three hundred eighty".