276421928 has 16 divisors (see below), whose sum is σ = 518532180. Its totient is φ = 138146688.

The previous prime is 276421867. The next prime is 276421949. The reversal of 276421928 is 829124672.

It can be written as a sum of positive squares in 2 ways, for example, as 276290884 + 131044 = 16622^2 + 362^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13700 + ... + 27212.

Almost surely, 2^276421928 is an apocalyptic number.

It is an amenable number.

276421928 is a deficient number, since it is larger than the sum of its proper divisors (242110252).

276421928 is a wasteful number, since it uses less digits than its factorization.

276421928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16076 (or 16072 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 276421928 is about 16625.9414169544. The cubic root of 276421928 is about 651.4146137763.

The spelling of 276421928 in words is "two hundred seventy-six million, four hundred twenty-one thousand, nine hundred twenty-eight".