28350080 has 64 divisors (see below), whose sum is σ = 73954080. Its totient is φ = 10306560.

The previous prime is 28350079. The next prime is 28350097. The reversal of 28350080 is 8005382.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5027 + ... + 9053.

Almost surely, 2^28350080 is an apocalyptic number.

28350080 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 28350080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36977040).

28350080 is an abundant number, since it is smaller than the sum of its proper divisors (45604000).

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

28350080 is a wasteful number, since it uses less digits than its factorization.

28350080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057 (or 4045 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 28350080 is about 5324.4793172666. The cubic root of 28350080 is about 304.9191938580.

The spelling of 28350080 in words is "twenty-eight million, three hundred fifty thousand, eighty".