2748646720 has 28 divisors (see below), whose sum is σ = 6545215764. Its totient is φ = 1099458560.

The previous prime is 2748646699. The next prime is 2748646721. The reversal of 2748646720 is 276468472.

It can be written as a sum of positive squares in 2 ways, for example, as 1923348736 + 825297984 = 43856^2 + 28728^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748646721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4294441 + ... + 4295080.

Almost surely, 2^2748646720 is an apocalyptic number.

2748646720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2748646720 is an abundant number, since it is smaller than the sum of its proper divisors (3796569044).

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

2748646720 is an equidigital number, since it uses as much as digits as its factorization.

2748646720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8589538 (or 8589528 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 46.

The square root of 2748646720 is about 52427.5378021894. The cubic root of 2748646720 is about 1400.7898128451.

The spelling of 2748646720 in words is "two billion, seven hundred forty-eight million, six hundred forty-six thousand, seven hundred twenty".