276822240 has 96 divisors (see below), whose sum is σ = 875974176. Its totient is φ = 73482240.

The previous prime is 276822239. The next prime is 276822269. The reversal of 276822240 is 42228672.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114484 + ... + 116876.

It is an arithmetic number, because the mean of its divisors is an integer number (9124731).

Almost surely, 2^276822240 is an apocalyptic number.

276822240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 276822240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (437987088).

276822240 is an abundant number, since it is smaller than the sum of its proper divisors (599151936).

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

276822240 is a wasteful number, since it uses less digits than its factorization.

276822240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2652 (or 2644 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 276822240 is about 16637.9758384246. The cubic root of 276822240 is about 651.7289198913.

The spelling of 276822240 in words is "two hundred seventy-six million, eight hundred twenty-two thousand, two hundred forty".