28258346 has 8 divisors (see below), whose sum is σ = 42898464. Its totient is φ = 13958860.

The previous prime is 28258319. The next prime is 28258357. The reversal of 28258346 is 64385282.

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

It is a super-3 number, since 3×28258346³ (a number of 23 digits) contains 333 as substring.

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, 84950 + ... + 85281.

It is an arithmetic number, because the mean of its divisors is an integer number (5362308).

Almost surely, 2^28258346 is an apocalyptic number.

28258346 is a deficient number, since it is larger than the sum of its proper divisors (14640118).

28258346 is a wasteful number, since it uses less digits than its factorization.

28258346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170316.

The product of its digits is 92160, while the sum is 38.

The square root of 28258346 is about 5315.8579740245. The cubic root of 28258346 is about 304.5899569116.

The spelling of 28258346 in words is "twenty-eight million, two hundred fifty-eight thousand, three hundred forty-six".