28090360 has 64 divisors (see below), whose sum is σ = 69465600. Its totient is φ = 10175616.

The previous prime is 28090351. The next prime is 28090393. The reversal of 28090360 is 6309082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16677 + ... + 18283.

It is an arithmetic number, because the mean of its divisors is an integer number (1085400).

Almost surely, 2^28090360 is an apocalyptic number.

28090360 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 28090360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34732800).

28090360 is an abundant number, since it is smaller than the sum of its proper divisors (41375240).

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

28090360 is a wasteful number, since it uses less digits than its factorization.

28090360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660 (or 1656 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 28090360 is about 5300.0339621553. The cubic root of 28090360 is about 303.9851966476.

It can be divided in two parts, 28090 and 360, that multiplied together give a square (10112400 = 3180²).

The spelling of 28090360 in words is "twenty-eight million, ninety thousand, three hundred sixty".