276816680 has 48 divisors (see below), whose sum is σ = 724530420. Its totient is φ = 94907904.

The previous prime is 276816677. The next prime is 276816689. The reversal of 276816680 is 86618672.

It can be written as a sum of positive squares in 2 ways, for example, as 257859364 + 18957316 = 16058^2 + 4354^2 .

It is not an unprimeable number, because it can be changed into a prime (276816689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68657 + ... + 72576.

Almost surely, 2^276816680 is an apocalyptic number.

276816680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276816680 is an abundant number, since it is smaller than the sum of its proper divisors (447713740).

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

276816680 is a wasteful number, since it uses less digits than its factorization.

276816680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141258 (or 141247 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 276816680 is about 16637.8087499526. The cubic root of 276816680 is about 651.7245565171.

The spelling of 276816680 in words is "two hundred seventy-six million, eight hundred sixteen thousand, six hundred eighty".