28338105 has 16 divisors (see below), whose sum is σ = 45523584. Its totient is φ = 15052800.

The previous prime is 28338103. The next prime is 28338127. The reversal of 28338105 is 50183382.

It is a happy number.

It is not a de Polignac number, because 28338105 - 2¹ = 28338103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28338103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180 + ... + 7530.

It is an arithmetic number, because the mean of its divisors is an integer number (2845224).

Almost surely, 2^28338105 is an apocalyptic number.

It is an amenable number.

28338105 is a deficient number, since it is larger than the sum of its proper divisors (17185479).

28338105 is a wasteful number, since it uses less digits than its factorization.

28338105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7616.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 28338105 is about 5323.3546753903. The cubic root of 28338105 is about 304.8762554538.

The spelling of 28338105 in words is "twenty-eight million, three hundred thirty-eight thousand, one hundred five".