2939728 has 20 divisors (see below), whose sum is σ = 6213888. Its totient is φ = 1336160.

The previous prime is 2939707. The next prime is 2939747. The reversal of 2939728 is 8279392.

2939728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8176 + ... + 8527.

2^2939728 is an apocalyptic number.

It is an amenable number.

2939728 is an abundant number, since it is smaller than the sum of its proper divisors (3274160).

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

2939728 is a wasteful number, since it uses less digits than its factorization.

2939728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16722 (or 16716 counting only the distinct ones).

The product of its digits is 54432, while the sum is 40.

The square root of 2939728 is about 1714.5635013029. The cubic root of 2939728 is about 143.2525570947.

The spelling of 2939728 in words is "two million, nine hundred thirty-nine thousand, seven hundred twenty-eight".