276740109 has 6 divisors (see below), whose sum is σ = 399735726. Its totient is φ = 184493400.

The previous prime is 276740099. The next prime is 276740143. The reversal of 276740109 is 901047672.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 211615209 + 65124900 = 14547^2 + 8070^2 .

It is not a de Polignac number, because 276740109 - 2⁵ = 276740077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276740309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15374442 + ... + 15374459.

It is an arithmetic number, because the mean of its divisors is an integer number (66622621).

Almost surely, 2^276740109 is an apocalyptic number.

It is an amenable number.

276740109 is a deficient number, since it is larger than the sum of its proper divisors (122995617).

276740109 is a wasteful number, since it uses less digits than its factorization.

276740109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30748907 (or 30748904 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 276740109 is about 16635.5074764793. The cubic root of 276740109 is about 651.6644592197.

The spelling of 276740109 in words is "two hundred seventy-six million, seven hundred forty thousand, one hundred nine".