28948512 has 48 divisors (see below), whose sum is σ = 76531392. Its totient is φ = 9580800.

The previous prime is 28948499. The next prime is 28948531. The reversal of 28948512 is 21584982.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13498 + ... + 15494.

It is an arithmetic number, because the mean of its divisors is an integer number (1594404).

Almost surely, 2^28948512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28948512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38265696).

28948512 is an abundant number, since it is smaller than the sum of its proper divisors (47582880).

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

28948512 is a wasteful number, since it uses less digits than its factorization.

28948512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161 (or 2153 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 28948512 is about 5380.3821425620. The cubic root of 28948512 is about 307.0497502019.

The spelling of 28948512 in words is "twenty-eight million, nine hundred forty-eight thousand, five hundred twelve".