28675458 has 48 divisors (see below), whose sum is σ = 73644480. Its totient is φ = 8192016.

The previous prime is 28675391. The next prime is 28675469. The reversal of 28675458 is 85457682.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 813 + ... + 7616.

It is an arithmetic number, because the mean of its divisors is an integer number (1534260).

Almost surely, 2^28675458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28675458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36822240).

28675458 is an abundant number, since it is smaller than the sum of its proper divisors (44969022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28675458 is an equidigital number, since it uses as much as digits as its factorization.

28675458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8453 (or 8441 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 28675458 is about 5354.9470585618. The cubic root of 28675458 is about 306.0812932803.

The spelling of 28675458 in words is "twenty-eight million, six hundred seventy-five thousand, four hundred fifty-eight".