276940628 has 12 divisors (see below), whose sum is σ = 485028852. Its totient is φ = 138360960.

The previous prime is 276940627. The next prime is 276940661. The reversal of 276940628 is 826049672.

It can be written as a sum of positive squares in 2 ways, for example, as 182034064 + 94906564 = 13492^2 + 9742^2 .

It is a super-2 number, since 2×276940628² = 153392222874068768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276940627) 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, 21503 + ... + 31878.

It is an arithmetic number, because the mean of its divisors is an integer number (40419071).

Almost surely, 2^276940628 is an apocalyptic number.

It is an amenable number.

276940628 is a deficient number, since it is larger than the sum of its proper divisors (208088224).

276940628 is a wasteful number, since it uses less digits than its factorization.

276940628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54682 (or 54680 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 276940628 is about 16641.5332226331. The cubic root of 276940628 is about 651.8218145070.

The spelling of 276940628 in words is "two hundred seventy-six million, nine hundred forty thousand, six hundred twenty-eight".