276129680 has 20 divisors (see below), whose sum is σ = 642001692. Its totient is φ = 110451840.

The previous prime is 276129673. The next prime is 276129701. The reversal of 276129680 is 86921672.

276129680 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 78783376 + 197346304 = 8876^2 + 14048^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1725731 + ... + 1725890.

Almost surely, 2^276129680 is an apocalyptic number.

276129680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276129680 is an abundant number, since it is smaller than the sum of its proper divisors (365872012).

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

276129680 is a wasteful number, since it uses less digits than its factorization.

276129680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451634 (or 3451628 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 276129680 is about 16617.1501768504. The cubic root of 276129680 is about 651.1849627374.

The spelling of 276129680 in words is "two hundred seventy-six million, one hundred twenty-nine thousand, six hundred eighty".