28338365 has 32 divisors (see below), whose sum is σ = 38966400. Its totient is φ = 19595520.

The previous prime is 28338361. The next prime is 28338379. The reversal of 28338365 is 56383382.

28338365 = T₉ + T₁₀ + ... + T₅₅₃.

It is not a de Polignac number, because 28338365 - 2² = 28338361 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28338361) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 173774 + ... + 173936.

It is an arithmetic number, because the mean of its divisors is an integer number (1217700).

Almost surely, 2^28338365 is an apocalyptic number.

It is an amenable number.

28338365 is a deficient number, since it is larger than the sum of its proper divisors (10628035).

28338365 is a wasteful number, since it uses less digits than its factorization.

28338365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317.

The product of its digits is 103680, while the sum is 38.

The square root of 28338365 is about 5323.3790960254. The cubic root of 28338365 is about 304.8771878566.

The spelling of 28338365 in words is "twenty-eight million, three hundred thirty-eight thousand, three hundred sixty-five".