2761280 has 28 divisors (see below), whose sum is σ = 6576060. Its totient is φ = 1104384.

The previous prime is 2761279. The next prime is 2761301. The reversal of 2761280 is 821672.

It can be written as a sum of positive squares in 2 ways, for example, as 1577536 + 1183744 = 1256^2 + 1088^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3995 + ... + 4634.

2^2761280 is an apocalyptic number.

2761280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2761280 is an abundant number, since it is smaller than the sum of its proper divisors (3814780).

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

2761280 is an equidigital number, since it uses as much as digits as its factorization.

2761280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8646 (or 8636 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2761280 is about 1661.7099626589. The cubic root of 2761280 is about 140.2932628144.

The spelling of 2761280 in words is "two million, seven hundred sixty-one thousand, two hundred eighty".