28560298 has 16 divisors (see below), whose sum is σ = 46548936. Its totient is φ = 13063680.

The previous prime is 28560251. The next prime is 28560353. The reversal of 28560298 is 89206582.

It can be written as a sum of positive squares in 4 ways, for example, as 3229209 + 25331089 = 1797^2 + 5033^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28560298.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1923 + ... + 7798.

Almost surely, 2^28560298 is an apocalyptic number.

28560298 is a deficient number, since it is larger than the sum of its proper divisors (17988638).

28560298 is a wasteful number, since it uses less digits than its factorization.

28560298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9849.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 28560298 is about 5344.1835672065. The cubic root of 28560298 is about 305.6710050030.

The spelling of 28560298 in words is "twenty-eight million, five hundred sixty thousand, two hundred ninety-eight".