28248480 has 192 divisors, whose sum is σ = 106686720. Its totient is φ = 6939648.

The previous prime is 28248461. The next prime is 28248499. The reversal of 28248480 is 8484282.

It is an interprime number because it is at equal distance from previous prime (28248461) and next prime (28248499).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

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 31 ways as a sum of consecutive naturals, for example, 55909 + ... + 56411.

It is an arithmetic number, because the mean of its divisors is an integer number (555660).

Almost surely, 2^28248480 is an apocalyptic number.

28248480 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 28248480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53343360).

28248480 is an abundant number, since it is smaller than the sum of its proper divisors (78438240).

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

28248480 is a wasteful number, since it uses less digits than its factorization.

28248480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The square root of 28248480 is about 5314.9299148719. The cubic root of 28248480 is about 304.5545050336.

The spelling of 28248480 in words is "twenty-eight million, two hundred forty-eight thousand, four hundred eighty".