28229258 has 8 divisors (see below), whose sum is σ = 43061760. Its totient is φ = 13875340.

The previous prime is 28229249. The next prime is 28229291. The reversal of 28229258 is 85292282.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119498 + ... + 119733.

It is an arithmetic number, because the mean of its divisors is an integer number (5382720).

Almost surely, 2^28229258 is an apocalyptic number.

28229258 is a deficient number, since it is larger than the sum of its proper divisors (14832502).

28229258 is a wasteful number, since it uses less digits than its factorization.

28229258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239292.

The product of its digits is 46080, while the sum is 38.

The square root of 28229258 is about 5313.1213048452. The cubic root of 28229258 is about 304.4854101650.

The spelling of 28229258 in words is "twenty-eight million, two hundred twenty-nine thousand, two hundred fifty-eight".