276428506 has 8 divisors (see below), whose sum is σ = 416058804. Its totient is φ = 137742240.

The previous prime is 276428491. The next prime is 276428507. The reversal of 276428506 is 605824672.

It can be written as a sum of positive squares in 2 ways, for example, as 249482025 + 26946481 = 15795^2 + 5191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (276428507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235275 + ... + 236446.

Almost surely, 2^276428506 is an apocalyptic number.

276428506 is a deficient number, since it is larger than the sum of its proper divisors (139630298).

276428506 is a wasteful number, since it uses less digits than its factorization.

276428506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472016.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 276428506 is about 16626.1392391619. The cubic root of 276428506 is about 651.4197809633.

The spelling of 276428506 in words is "two hundred seventy-six million, four hundred twenty-eight thousand, five hundred six".