28585080 has 96 divisors (see below), whose sum is σ = 93562560. Its totient is φ = 7568640.

The previous prime is 28585079. The next prime is 28585093. The reversal of 28585080 is 8058582.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97414 + ... + 97706.

It is an arithmetic number, because the mean of its divisors is an integer number (974610).

Almost surely, 2^28585080 is an apocalyptic number.

28585080 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 28585080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46781280).

28585080 is an abundant number, since it is smaller than the sum of its proper divisors (64977480).

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

28585080 is a wasteful number, since it uses less digits than its factorization.

28585080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 28585080 is about 5346.5016599642. The cubic root of 28585080 is about 305.7593905059.

The spelling of 28585080 in words is "twenty-eight million, five hundred eighty-five thousand, eighty".