276122385 has 128 divisors (see below), whose sum is σ = 620421120. Its totient is φ = 113184000.

The previous prime is 276122351. The next prime is 276122389. The reversal of 276122385 is 583221672.

276122385 is a `hidden beast` number, since 2 + 7 + 612 + 2 + 38 + 5 = 666.

It is not a de Polignac number, because 276122385 - 2⁸ = 276122129 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (276122389) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1049764 + ... + 1050026.

It is an arithmetic number, because the mean of its divisors is an integer number (4847040).

Almost surely, 2^276122385 is an apocalyptic number.

It is an amenable number.

276122385 is an abundant number, since it is smaller than the sum of its proper divisors (344298735).

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

276122385 is a wasteful number, since it uses less digits than its factorization.

276122385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 390 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 276122385 is about 16616.9306732621. The cubic root of 276122385 is about 651.1792281901.

The spelling of 276122385 in words is "two hundred seventy-six million, one hundred twenty-two thousand, three hundred eighty-five".