2923491728 has 40 divisors (see below), whose sum is σ = 5943327936. Its totient is φ = 1390435200.

The previous prime is 2923491719. The next prime is 2923491743. The reversal of 2923491728 is 8271943292.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 44663 + ... + 88553.

Almost surely, 2^2923491728 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 2923491728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2971663968).

2923491728 is an abundant number, since it is smaller than the sum of its proper divisors (3019836208).

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

2923491728 is a wasteful number, since it uses less digits than its factorization.

2923491728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44103 (or 44097 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 2923491728 is about 54069.3233543754. The cubic root of 2923491728 is about 1429.8833960377.

The spelling of 2923491728 in words is "two billion, nine hundred twenty-three million, four hundred ninety-one thousand, seven hundred twenty-eight".