276250380 has 96 divisors (see below), whose sum is σ = 897286656. Its totient is φ = 62194176.

The previous prime is 276250369. The next prime is 276250397. The reversal of 276250380 is 83052672.

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, 23232 + ... + 33048.

It is an arithmetic number, because the mean of its divisors is an integer number (9346736).

Almost surely, 2^276250380 is an apocalyptic number.

276250380 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 276250380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448643328).

276250380 is an abundant number, since it is smaller than the sum of its proper divisors (621036276).

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

276250380 is a wasteful number, since it uses less digits than its factorization.

276250380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9903 (or 9901 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 276250380 is about 16620.7815700706. The cubic root of 276250380 is about 651.2798294870.

The spelling of 276250380 in words is "two hundred seventy-six million, two hundred fifty thousand, three hundred eighty".