276856480 has 24 divisors (see below), whose sum is σ = 654073812. Its totient is φ = 110742528.

The previous prime is 276856457. The next prime is 276856487. The reversal of 276856480 is 84658672.

It can be written as a sum of positive squares in 2 ways, for example, as 273307024 + 3549456 = 16532^2 + 1884^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 276856480.

It is not an unprimeable number, because it can be changed into a prime (276856487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865017 + ... + 865336.

Almost surely, 2^276856480 is an apocalyptic number.

276856480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276856480 is an abundant number, since it is smaller than the sum of its proper divisors (377217332).

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

276856480 is a wasteful number, since it uses less digits than its factorization.

276856480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730368 (or 1730360 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 276856480 is about 16639.0047779307. The cubic root of 276856480 is about 651.7557894547.

The spelling of 276856480 in words is "two hundred seventy-six million, eight hundred fifty-six thousand, four hundred eighty".