2745680 has 40 divisors (see below), whose sum is σ = 7297152. Its totient is φ = 941184.

The previous prime is 2745661. The next prime is 2745697. The reversal of 2745680 is 865472.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1892 + ... + 3011.

2^2745680 is an apocalyptic number.

2745680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2745680 is an abundant number, since it is smaller than the sum of its proper divisors (4551472).

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

2745680 is a wasteful number, since it uses less digits than its factorization.

2745680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4923 (or 4917 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 2745680 is about 1657.0093542283. The cubic root of 2745680 is about 140.0285655997.

The spelling of 2745680 in words is "two million, seven hundred forty-five thousand, six hundred eighty".