28824132 has 24 divisors (see below), whose sum is σ = 67952416. Its totient is φ = 9508608.

The previous prime is 28824127. The next prime is 28824139. The reversal of 28824132 is 23142882.

It is a self number, because there is not a number n which added to its sum of digits gives 28824132.

It is not an unprimeable number, because it can be changed into a prime (28824139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11218 + ... + 13545.

Almost surely, 2^28824132 is an apocalyptic number.

It is an amenable number.

28824132 is an abundant number, since it is smaller than the sum of its proper divisors (39128284).

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

28824132 is a wasteful number, since it uses less digits than its factorization.

28824132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24867 (or 24865 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 28824132 is about 5368.8110415622. The cubic root of 28824132 is about 306.6093628488.

The spelling of 28824132 in words is "twenty-eight million, eight hundred twenty-four thousand, one hundred thirty-two".