2721932928 has 576 divisors, whose sum is σ = 9783970560. Its totient is φ = 718848000.

The previous prime is 2721932923. The next prime is 2721932929. The reversal of 2721932928 is 8292391272.

It is a happy number.

2721932928 is a `hidden beast` number, since 272 + 1 + 93 + 292 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is not an unprimeable number, because it can be changed into a prime (2721932921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 66388588 + ... + 66388628.

It is an arithmetic number, because the mean of its divisors is an integer number (16986060).

Almost surely, 2^2721932928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2721932928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4891985280).

2721932928 is an abundant number, since it is smaller than the sum of its proper divisors (7062037632).

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

2721932928 is a wasteful number, since it uses less digits than its factorization.

2721932928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 101 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 2721932928 is about 52172.1470518513. The cubic root of 2721932928 is about 1396.2369912070.

The spelling of 2721932928 in words is "two billion, seven hundred twenty-one million, nine hundred thirty-two thousand, nine hundred twenty-eight".