276536385 has 24 divisors (see below), whose sum is σ = 480392640. Its totient is φ = 147159072.

The previous prime is 276536371. The next prime is 276536387. The reversal of 276536385 is 583635672.

276536385 is a `hidden beast` number, since 2 + 7 + 6 + 5 + 3 + 638 + 5 = 666.

It is not a de Polignac number, because 276536385 - 2⁵ = 276536353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 276536385.

It is not an unprimeable number, because it can be changed into a prime (276536387) 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 23 ways as a sum of consecutive naturals, for example, 14436 + ... + 27594.

It is an arithmetic number, because the mean of its divisors is an integer number (20016360).

Almost surely, 2^276536385 is an apocalyptic number.

It is an amenable number.

276536385 is a deficient number, since it is larger than the sum of its proper divisors (203856255).

276536385 is a wasteful number, since it uses less digits than its factorization.

276536385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13637 (or 13634 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 276536385 is about 16629.3831815855. The cubic root of 276536385 is about 651.5045109787.

The spelling of 276536385 in words is "two hundred seventy-six million, five hundred thirty-six thousand, three hundred eighty-five".