28354838 has 8 divisors (see below), whose sum is σ = 43070880. Its totient is φ = 13997880.

The previous prime is 28354811. The next prime is 28354847. The reversal of 28354838 is 83845382.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28354795 and 28354804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89573 + ... + 89888.

It is an arithmetic number, because the mean of its divisors is an integer number (5383860).

Almost surely, 2^28354838 is an apocalyptic number.

28354838 is a deficient number, since it is larger than the sum of its proper divisors (14716042).

28354838 is a wasteful number, since it uses less digits than its factorization.

28354838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179542.

The product of its digits is 184320, while the sum is 41.

The square root of 28354838 is about 5324.9261027736. The cubic root of 28354838 is about 304.9362511216.

It can be divided in two parts, 28354 and 838, that added together give a palindrome (29192).

The spelling of 28354838 in words is "twenty-eight million, three hundred fifty-four thousand, eight hundred thirty-eight".