276064660 has 12 divisors (see below), whose sum is σ = 579735828. Its totient is φ = 110425856.

The previous prime is 276064643. The next prime is 276064673. The reversal of 276064660 is 66460672.

It can be written as a sum of positive squares in 2 ways, for example, as 197458704 + 78605956 = 14052^2 + 8866^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6901597 + ... + 6901636.

It is an arithmetic number, because the mean of its divisors is an integer number (48311319).

Almost surely, 2^276064660 is an apocalyptic number.

276064660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276064660 is an abundant number, since it is smaller than the sum of its proper divisors (303671168).

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

276064660 is a wasteful number, since it uses less digits than its factorization.

276064660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13803242 (or 13803240 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 276064660 is about 16615.1936491875. The cubic root of 276064660 is about 651.1338474184.

The spelling of 276064660 in words is "two hundred seventy-six million, sixty-four thousand, six hundred sixty".