276646540 has 12 divisors (see below), whose sum is σ = 580957776. Its totient is φ = 110658608.

The previous prime is 276646537. The next prime is 276646543. The reversal of 276646540 is 45646672.

It is an interprime number because it is at equal distance from previous prime (276646537) and next prime (276646543).

It is a junction number, because it is equal to n+sod(n) for n = 276646493 and 276646502.

It is not an unprimeable number, because it can be changed into a prime (276646543) by changing a digit.

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, 6916144 + ... + 6916183.

It is an arithmetic number, because the mean of its divisors is an integer number (48413148).

Almost surely, 2^276646540 is an apocalyptic number.

276646540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276646540 is an abundant number, since it is smaller than the sum of its proper divisors (304311236).

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

276646540 is a wasteful number, since it uses less digits than its factorization.

276646540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13832336 (or 13832334 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 276646540 is about 16632.6949109277. The cubic root of 276646540 is about 651.5910058685.

The spelling of 276646540 in words is "two hundred seventy-six million, six hundred forty-six thousand, five hundred forty".