276545672 has 16 divisors (see below), whose sum is σ = 558409740. Its totient is φ = 127636416.

The previous prime is 276545669. The next prime is 276545677.

276545672 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 273770116 + 2775556 = 16546^2 + 1666^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (276545677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1329443 + ... + 1329650.

Almost surely, 2^276545672 is an apocalyptic number.

It is an amenable number.

276545672 is an abundant number, since it is smaller than the sum of its proper divisors (281864068).

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

276545672 is a wasteful number, since it uses less digits than its factorization.

276545672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659112 (or 2659108 counting only the distinct ones).

The product of its digits is 705600, while the sum is 44.

The square root of 276545672 is about 16629.6624138916. The cubic root of 276545672 is about 651.5118041175.

The spelling of 276545672 in words is "two hundred seventy-six million, five hundred forty-five thousand, six hundred seventy-two".