276869880 has 256 divisors, whose sum is σ = 1076198400. Its totient is φ = 62000640.

The previous prime is 276869869. The next prime is 276869899. The reversal of 276869880 is 88968672.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 400335 + ... + 401025.

It is an arithmetic number, because the mean of its divisors is an integer number (4203900).

Almost surely, 2^276869880 is an apocalyptic number.

276869880 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 276869880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538099200).

276869880 is an abundant number, since it is smaller than the sum of its proper divisors (799328520).

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

276869880 is a wasteful number, since it uses less digits than its factorization.

276869880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The square root of 276869880 is about 16639.4074413724. The cubic root of 276869880 is about 651.7663043933.

The spelling of 276869880 in words is "two hundred seventy-six million, eight hundred sixty-nine thousand, eight hundred eighty".