28955056 has 40 divisors (see below), whose sum is σ = 61027344. Its totient is φ = 13228800.

The previous prime is 28955041. The next prime is 28955077. The reversal of 28955056 is 65055982.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21606 + ... + 22906.

Almost surely, 2^28955056 is an apocalyptic number.

28955056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28955056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30513672).

28955056 is an abundant number, since it is smaller than the sum of its proper divisors (32072288).

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

28955056 is a wasteful number, since it uses less digits than its factorization.

28955056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429 (or 1423 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 28955056 is about 5380.9902434403. The cubic root of 28955056 is about 307.0728853251.

The spelling of 28955056 in words is "twenty-eight million, nine hundred fifty-five thousand, fifty-six".