276464880 has 160 divisors (see below), whose sum is σ = 1008417600. Its totient is φ = 69378048.

The previous prime is 276464873. The next prime is 276464939. The reversal of 276464880 is 88464672.

276464880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32956 + ... + 40484.

It is an arithmetic number, because the mean of its divisors is an integer number (6302610).

Almost surely, 2^276464880 is an apocalyptic number.

276464880 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 276464880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504208800).

276464880 is an abundant number, since it is smaller than the sum of its proper divisors (731952720).

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

276464880 is a wasteful number, since it uses less digits than its factorization.

276464880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7568 (or 7556 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 276464880 is about 16627.2330831080. The cubic root of 276464880 is about 651.4483521892.

The spelling of 276464880 in words is "two hundred seventy-six million, four hundred sixty-four thousand, eight hundred eighty".