28995132 has 48 divisors (see below), whose sum is σ = 72485280. Its totient is φ = 8988672.

The previous prime is 28995119. The next prime is 28995139. The reversal of 28995132 is 23159982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28995139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17358 + ... + 18954.

It is an arithmetic number, because the mean of its divisors is an integer number (1510110).

Almost surely, 2^28995132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28995132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36242640).

28995132 is an abundant number, since it is smaller than the sum of its proper divisors (43490148).

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

28995132 is a wasteful number, since it uses less digits than its factorization.

28995132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710 (or 1708 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 28995132 is about 5384.7128057121. The cubic root of 28995132 is about 307.2144907580.

The spelling of 28995132 in words is "twenty-eight million, nine hundred ninety-five thousand, one hundred thirty-two".