28282080 has 48 divisors (see below), whose sum is σ = 89090064. Its totient is φ = 7541760.

The previous prime is 28282057. The next prime is 28282099. The reversal of 28282080 is 8028282.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28981 + ... + 29940.

It is an arithmetic number, because the mean of its divisors is an integer number (1856043).

Almost surely, 2^28282080 is an apocalyptic number.

28282080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28282080 is an abundant number, since it is smaller than the sum of its proper divisors (60807984).

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

28282080 is a wasteful number, since it uses less digits than its factorization.

28282080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58939 (or 58931 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 28282080 is about 5318.0898826552. The cubic root of 28282080 is about 304.6752074199.

The spelling of 28282080 in words is "twenty-eight million, two hundred eighty-two thousand, eighty".