2790728 has 32 divisors (see below), whose sum is σ = 5659200. Its totient is φ = 1286208.

The previous prime is 2790721. The next prime is 2790769. The reversal of 2790728 is 8270972.

It is not an unprimeable number, because it can be changed into a prime (2790721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5075 + ... + 5597.

It is an arithmetic number, because the mean of its divisors is an integer number (176850).

2^2790728 is an apocalyptic number.

It is an amenable number.

2790728 is an abundant number, since it is smaller than the sum of its proper divisors (2868472).

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

2790728 is a wasteful number, since it uses less digits than its factorization.

2790728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 2790728 is about 1670.5472157350. The cubic root of 2790728 is about 140.7902250876.

It can be divided in two parts, 2790 and 728, that multiplied together give a triangular number (2031120 = T₂₀₁₅).

The spelling of 2790728 in words is "two million, seven hundred ninety thousand, seven hundred twenty-eight".