2747944920 has 256 divisors, whose sum is σ = 9986457600. Its totient is φ = 590906880.

The previous prime is 2747944831. The next prime is 2747944921. The reversal of 2747944920 is 294497472.

It is a self number, because there is not a number n which added to its sum of digits gives 2747944920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2747944921) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 2664805 + ... + 2665835.

It is an arithmetic number, because the mean of its divisors is an integer number (39009600).

Almost surely, 2^2747944920 is an apocalyptic number.

2747944920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2747944920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4993228800).

2747944920 is an abundant number, since it is smaller than the sum of its proper divisors (7238512680).

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

2747944920 is a wasteful number, since it uses less digits than its factorization.

2747944920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238 (or 1234 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The square root of 2747944920 is about 52420.8443274238. The cubic root of 2747944920 is about 1400.6705835090.

The spelling of 2747944920 in words is "two billion, seven hundred forty-seven million, nine hundred forty-four thousand, nine hundred twenty".