276255450 has 72 divisors (see below), whose sum is σ = 767835900. Its totient is φ = 71124480.

The previous prime is 276255449. The next prime is 276255481. The reversal of 276255450 is 54552672.

276255450 is a `hidden beast` number, since 27 + 625 + 5 + 4 + 5 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 186896241 + 89359209 = 13671^2 + 9453^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2466 + ... + 23634.

Almost surely, 2^276255450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 276255450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383917950).

276255450 is an abundant number, since it is smaller than the sum of its proper divisors (491580450).

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

276255450 is a wasteful number, since it uses less digits than its factorization.

276255450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21216 (or 21208 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 276255450 is about 16620.9340892743. The cubic root of 276255450 is about 651.2838137573.

The spelling of 276255450 in words is "two hundred seventy-six million, two hundred fifty-five thousand, four hundred fifty".