28702052 has 12 divisors (see below), whose sum is σ = 53183340. Its totient is φ = 13506816.

The previous prime is 28702033. The next prime is 28702061. The reversal of 28702052 is 25020782.

It can be written as a sum of positive squares in 2 ways, for example, as 10588516 + 18113536 = 3254^2 + 4256^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210977 + ... + 211112.

It is an arithmetic number, because the mean of its divisors is an integer number (4431945).

Almost surely, 2^28702052 is an apocalyptic number.

It is an amenable number.

28702052 is a deficient number, since it is larger than the sum of its proper divisors (24481288).

28702052 is a wasteful number, since it uses less digits than its factorization.

28702052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422110 (or 422108 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 28702052 is about 5357.4296075637. The cubic root of 28702052 is about 306.1758853277.

The spelling of 28702052 in words is "twenty-eight million, seven hundred two thousand, fifty-two".