276668349 has 16 divisors (see below), whose sum is σ = 376331520. Its totient is φ = 180760320.

The previous prime is 276668341. The next prime is 276668363. The reversal of 276668349 is 943866672.

It is a happy number.

It is not a de Polignac number, because 276668349 - 2³ = 276668341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276668341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28209 + ... + 36729.

It is an arithmetic number, because the mean of its divisors is an integer number (23520720).

Almost surely, 2^276668349 is an apocalyptic number.

It is an amenable number.

276668349 is a deficient number, since it is larger than the sum of its proper divisors (99663171).

276668349 is a wasteful number, since it uses less digits than its factorization.

276668349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8740.

The product of its digits is 2612736, while the sum is 51.

The square root of 276668349 is about 16633.3505043332. The cubic root of 276668349 is about 651.6081278066.

The spelling of 276668349 in words is "two hundred seventy-six million, six hundred sixty-eight thousand, three hundred forty-nine".