276532872 has 96 divisors (see below), whose sum is σ = 877353120. Its totient is φ = 71823360.

The previous prime is 276532847. The next prime is 276532873. The reversal of 276532872 is 278235672.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (276532873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2248 + ... + 23624.

It is an arithmetic number, because the mean of its divisors is an integer number (9139095).

Almost surely, 2^276532872 is an apocalyptic number.

276532872 is a gapful number since it is divisible by the number (22) 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 276532872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438676560).

276532872 is an abundant number, since it is smaller than the sum of its proper divisors (600820248).

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

276532872 is a wasteful number, since it uses less digits than its factorization.

276532872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21411 (or 21400 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 276532872 is about 16629.2775549631. The cubic root of 276532872 is about 651.5017521555.

The spelling of 276532872 in words is "two hundred seventy-six million, five hundred thirty-two thousand, eight hundred seventy-two".