28460880 has 120 divisors (see below), whose sum is σ = 109254912. Its totient is φ = 6504192.

The previous prime is 28460869. The next prime is 28460893. The reversal of 28460880 is 8806482.

It is a tau number, because it is divible by the number of its divisors (120).

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2217 + ... + 7863.

Almost surely, 2^28460880 is an apocalyptic number.

28460880 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 28460880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54627456).

28460880 is an abundant number, since it is smaller than the sum of its proper divisors (80794032).

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

28460880 is a wasteful number, since it uses less digits than its factorization.

28460880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5673 (or 5664 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 28460880 is about 5334.8739441528. The cubic root of 28460880 is about 305.3159138227.

The spelling of 28460880 in words is "twenty-eight million, four hundred sixty thousand, eight hundred eighty".