28544760 has 96 divisors (see below), whose sum is σ = 95322240. Its totient is φ = 7402752.

The previous prime is 28544749. The next prime is 28544773. The reversal of 28544760 is 6744582.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12249 + ... + 14391.

It is an arithmetic number, because the mean of its divisors is an integer number (992940).

Almost surely, 2^28544760 is an apocalyptic number.

28544760 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 28544760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47661120).

28544760 is an abundant number, since it is smaller than the sum of its proper divisors (66777480).

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

28544760 is a wasteful number, since it uses less digits than its factorization.

28544760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197 (or 2190 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 28544760 is about 5342.7296394259. The cubic root of 28544760 is about 305.6155623317.

The spelling of 28544760 in words is "twenty-eight million, five hundred forty-four thousand, seven hundred sixty".