28741832 has 96 divisors (see below), whose sum is σ = 70178400. Its totient is φ = 10934784.

The previous prime is 28741831. The next prime is 28741877. The reversal of 28741832 is 23814782.

It is a junction number, because it is equal to n+sod(n) for n = 28741792 and 28741801.

It is not an unprimeable number, because it can be changed into a prime (28741831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126503 + ... + 126729.

It is an arithmetic number, because the mean of its divisors is an integer number (731025).

Almost surely, 2^28741832 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 28741832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35089200).

28741832 is an abundant number, since it is smaller than the sum of its proper divisors (41436568).

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

28741832 is a wasteful number, since it uses less digits than its factorization.

28741832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 272 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 28741832 is about 5361.1409233483. The cubic root of 28741832 is about 306.3172695765.

The spelling of 28741832 in words is "twenty-eight million, seven hundred forty-one thousand, eight hundred thirty-two".