2755880 has 16 divisors (see below), whose sum is σ = 6200820. Its totient is φ = 1102336.

The previous prime is 2755877. The next prime is 2755891. The reversal of 2755880 is 885572.

It can be written as a sum of positive squares in 2 ways, for example, as 2735716 + 20164 = 1654^2 + 142^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2755880.

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, 34409 + ... + 34488.

2^2755880 is an apocalyptic number.

2755880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2755880 is an abundant number, since it is smaller than the sum of its proper divisors (3444940).

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

2755880 is a wasteful number, since it uses less digits than its factorization.

2755880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68908 (or 68904 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 2755880 is about 1660.0843352071. The cubic root of 2755880 is about 140.2017499407.

The spelling of 2755880 in words is "two million, seven hundred fifty-five thousand, eight hundred eighty".