28751360 has 80 divisors (see below), whose sum is σ = 75276432. Its totient is φ = 10444800.

The previous prime is 28751347. The next prime is 28751399. The reversal of 28751360 is 6315782.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (32).

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 7 ways as a sum of consecutive naturals, for example, 27650 + ... + 28670.

Almost surely, 2^28751360 is an apocalyptic number.

28751360 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 28751360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37638216).

28751360 is an abundant number, since it is smaller than the sum of its proper divisors (46525072).

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

28751360 is a wasteful number, since it uses less digits than its factorization.

28751360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 28751360 is about 5362.0294665360. The cubic root of 28751360 is about 306.3511141890.

The spelling of 28751360 in words is "twenty-eight million, seven hundred fifty-one thousand, three hundred sixty".