2940728 has 32 divisors (see below), whose sum is σ = 6674400. Its totient is φ = 1185792.

The previous prime is 2940709. The next prime is 2940731. The reversal of 2940728 is 8270492.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2940694 and 2940703.

It is a congruent 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, 593 + ... + 2496.

It is an arithmetic number, because the mean of its divisors is an integer number (208575).

2^2940728 is an apocalyptic number.

2940728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2940728 is an abundant number, since it is smaller than the sum of its proper divisors (3733672).

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

2940728 is a wasteful number, since it uses less digits than its factorization.

2940728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119 (or 3115 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2940728 is about 1714.8550959192. The cubic root of 2940728 is about 143.2687985425.

The spelling of 2940728 in words is "two million, nine hundred forty thousand, seven hundred twenty-eight".