276249648 has 30 divisors (see below), whose sum is σ = 713942524. Its totient is φ = 92044832.

The previous prime is 276249641. The next prime is 276249653. The reversal of 276249648 is 846942672.

276249648 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 (48).

It is a junction number, because it is equal to n+sod(n) for n = 276249597 and 276249606.

It is not an unprimeable number, because it can be changed into a prime (276249641) 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 5 ways as a sum of consecutive naturals, for example, 113953 + ... + 116351.

Almost surely, 2^276249648 is an apocalyptic number.

It is an amenable number.

276249648 is an abundant number, since it is smaller than the sum of its proper divisors (437692876).

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

276249648 is an frugal number, since it uses more digits than its factorization.

276249648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4809 (or 2404 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The square root of 276249648 is about 16620.7595494309. The cubic root of 276249648 is about 651.2792542393.

Multiplying 276249648 by its sum of digits (48), we get a square (13259983104 = 115152²).

276249648 divided by its sum of digits (48) gives a square (5755201 = 2399²).

The spelling of 276249648 in words is "two hundred seventy-six million, two hundred forty-nine thousand, six hundred forty-eight".