28358234 has 8 divisors (see below), whose sum is σ = 42559968. Its totient is φ = 14171580.

The previous prime is 28358191. The next prime is 28358257. The reversal of 28358234 is 43285382.

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 = 28358194 and 28358203.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5249 + ... + 9179.

It is an arithmetic number, because the mean of its divisors is an integer number (5319996).

Almost surely, 2^28358234 is an apocalyptic number.

28358234 is a deficient number, since it is larger than the sum of its proper divisors (14201734).

28358234 is a wasteful number, since it uses less digits than its factorization.

28358234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7540.

The product of its digits is 46080, while the sum is 35.

The square root of 28358234 is about 5325.2449708910. The cubic root of 28358234 is about 304.9484244960.

The spelling of 28358234 in words is "twenty-eight million, three hundred fifty-eight thousand, two hundred thirty-four".