28948458 has 32 divisors (see below), whose sum is σ = 72184320. Its totient is φ = 7518960.

The previous prime is 28948429. The next prime is 28948463. The reversal of 28948458 is 85484982.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30868 + ... + 31791.

It is an arithmetic number, because the mean of its divisors is an integer number (2255760).

Almost surely, 2^28948458 is an apocalyptic number.

28948458 is an abundant number, since it is smaller than the sum of its proper divisors (43235862).

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

28948458 is a wasteful number, since it uses less digits than its factorization.

28948458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62682.

The product of its digits is 737280, while the sum is 48.

The square root of 28948458 is about 5380.3771243287. The cubic root of 28948458 is about 307.0495592802.

The spelling of 28948458 in words is "twenty-eight million, nine hundred forty-eight thousand, four hundred fifty-eight".