2748784420 has 12 divisors (see below), whose sum is σ = 5772447324. Its totient is φ = 1099513760.

The previous prime is 2748784403. The next prime is 2748784447. The reversal of 2748784420 is 244878472.

It can be written as a sum of positive squares in 2 ways, for example, as 378847296 + 2369937124 = 19464^2 + 48682^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68719591 + ... + 68719630.

It is an arithmetic number, because the mean of its divisors is an integer number (481037277).

Almost surely, 2^2748784420 is an apocalyptic number.

2748784420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2748784420 is an abundant number, since it is smaller than the sum of its proper divisors (3023662904).

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

2748784420 is a wasteful number, since it uses less digits than its factorization.

2748784420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137439230 (or 137439228 counting only the distinct ones).

The product of its (nonzero) digits is 802816, while the sum is 46.

The square root of 2748784420 is about 52428.8510268917. The cubic root of 2748784420 is about 1400.8132044211.

The spelling of 2748784420 in words is "two billion, seven hundred forty-eight million, seven hundred eighty-four thousand, four hundred twenty".