28104960 has 144 divisors (see below), whose sum is σ = 96836544. Its totient is φ = 6905856.

The previous prime is 28104911. The next prime is 28104997. The reversal of 28104960 is 6940182.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49639 + ... + 50201.

It is an arithmetic number, because the mean of its divisors is an integer number (672476).

Almost surely, 2^28104960 is an apocalyptic number.

28104960 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 28104960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48418272).

28104960 is an abundant number, since it is smaller than the sum of its proper divisors (68731584).

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

28104960 is a wasteful number, since it uses less digits than its factorization.

28104960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 28104960 is about 5301.4111328966. The cubic root of 28104960 is about 304.0378530889.

The spelling of 28104960 in words is "twenty-eight million, one hundred four thousand, nine hundred sixty".