276500000 has 168 divisors, whose sum is σ = 787489920. Its totient is φ = 93600000.

The previous prime is 276499999. The next prime is 276500041. The reversal of 276500000 is 5672.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 27 ways as a sum of consecutive naturals, for example, 3499961 + ... + 3500039.

It is an arithmetic number, because the mean of its divisors is an integer number (4687440).

Almost surely, 2^276500000 is an apocalyptic number.

276500000 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 276500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393744960).

276500000 is an abundant number, since it is smaller than the sum of its proper divisors (510989920).

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

276500000 is an frugal number, since it uses more digits than its factorization.

276500000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 276500000 is about 16628.2891483159. The cubic root of 276500000 is about 651.4759360393.

Adding to 276500000 its reverse (5672), we get a palindrome (276505672).

The spelling of 276500000 in words is "two hundred seventy-six million, five hundred thousand".