28960080 has 80 divisors (see below), whose sum is σ = 91166784. Its totient is φ = 7603200.

The previous prime is 28960031. The next prime is 28960081. The reversal of 28960080 is 8006982.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28960081) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 15180 + ... + 16980.

Almost surely, 2^28960080 is an apocalyptic number.

28960080 is a gapful number since it is divisible by the number (20) 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 28960080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45583392).

28960080 is an abundant number, since it is smaller than the sum of its proper divisors (62206704).

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

28960080 is a wasteful number, since it uses less digits than its factorization.

28960080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 28960080 is about 5381.4570517658. The cubic root of 28960080 is about 307.0906443992.

The spelling of 28960080 in words is "twenty-eight million, nine hundred sixty thousand, eighty".