2745804720 has 80 divisors (see below), whose sum is σ = 8639089920. Its totient is φ = 721281792.

The previous prime is 2745804713. The next prime is 2745804739. The reversal of 2745804720 is 274085472.

2745804720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69300 + ... + 101459.

It is an arithmetic number, because the mean of its divisors is an integer number (107988624).

Almost surely, 2^2745804720 is an apocalyptic number.

2745804720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2745804720 is an abundant number, since it is smaller than the sum of its proper divisors (5893285200).

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

2745804720 is a wasteful number, since it uses less digits than its factorization.

2745804720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170842 (or 170836 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 2745804720 is about 52400.4267158198. The cubic root of 2745804720 is about 1400.3068579067.

The spelling of 2745804720 in words is "two billion, seven hundred forty-five million, eight hundred four thousand, seven hundred twenty".