28495590 has 16 divisors (see below), whose sum is σ = 68389488. Its totient is φ = 7598816.

The previous prime is 28495561. The next prime is 28495591. The reversal of 28495590 is 9559482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28495591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474897 + ... + 474956.

It is an arithmetic number, because the mean of its divisors is an integer number (4274343).

Almost surely, 2^28495590 is an apocalyptic number.

28495590 is an abundant number, since it is smaller than the sum of its proper divisors (39893898).

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

28495590 is a wasteful number, since it uses less digits than its factorization.

28495590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949863.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 28495590 is about 5338.1260756936. The cubic root of 28495590 is about 305.4399813164.

The spelling of 28495590 in words is "twenty-eight million, four hundred ninety-five thousand, five hundred ninety".