276440849 has 2 divisors, whose sum is σ = 276440850. Its totient is φ = 276440848.

The previous prime is 276440839. The next prime is 276440869. The reversal of 276440849 is 948044672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175297600 + 101143249 = 13240^2 + 10057^2 .

It is a cyclic number.

It is not a de Polignac number, because 276440849 - 2¹⁶ = 276375313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (276440839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138220424 + 138220425.

It is an arithmetic number, because the mean of its divisors is an integer number (138220425).

Almost surely, 2^276440849 is an apocalyptic number.

It is an amenable number.

276440849 is a deficient number, since it is larger than the sum of its proper divisors (1).

276440849 is an equidigital number, since it uses as much as digits as its factorization.

276440849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 276440849 is about 16626.5104276273. The cubic root of 276440849 is about 651.4294764837.

The spelling of 276440849 in words is "two hundred seventy-six million, four hundred forty thousand, eight hundred forty-nine".