28588632 has 64 divisors (see below), whose sum is σ = 75790080. Its totient is φ = 8967552.

The previous prime is 28588631. The next prime is 28588639. The reversal of 28588632 is 23688582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28588631) 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, 36598 + ... + 37370.

It is an arithmetic number, because the mean of its divisors is an integer number (1184220).

Almost surely, 2^28588632 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 28588632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37895040).

28588632 is an abundant number, since it is smaller than the sum of its proper divisors (47201448).

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

28588632 is a wasteful number, since it uses less digits than its factorization.

28588632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 868 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 28588632 is about 5346.8338294733. The cubic root of 28588632 is about 305.7720545993.

The spelling of 28588632 in words is "twenty-eight million, five hundred eighty-eight thousand, six hundred thirty-two".