28338285 has 8 divisors (see below), whose sum is σ = 45341280. Its totient is φ = 15113744.

The previous prime is 28338283. The next prime is 28338293. The reversal of 28338285 is 58283382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28338285 - 2¹ = 28338283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28338281) 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, 944595 + ... + 944624.

It is an arithmetic number, because the mean of its divisors is an integer number (5667660).

Almost surely, 2^28338285 is an apocalyptic number.

It is an amenable number.

28338285 is a deficient number, since it is larger than the sum of its proper divisors (17002995).

28338285 is a wasteful number, since it uses less digits than its factorization.

28338285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889227.

The product of its digits is 92160, while the sum is 39.

The square root of 28338285 is about 5323.3715819958. The cubic root of 28338285 is about 304.8769009640.

The spelling of 28338285 in words is "twenty-eight million, three hundred thirty-eight thousand, two hundred eighty-five".