28608132 has 24 divisors (see below), whose sum is σ = 76288576. Its totient is φ = 8173728.

The previous prime is 28608131. The next prime is 28608137. The reversal of 28608132 is 23180682.

It is a self number, because there is not a number n which added to its sum of digits gives 28608132.

It is not an unprimeable number, because it can be changed into a prime (28608131) 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, 170203 + ... + 170370.

Almost surely, 2^28608132 is an apocalyptic number.

It is an amenable number.

28608132 is an abundant number, since it is smaller than the sum of its proper divisors (47680444).

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

28608132 is a wasteful number, since it uses less digits than its factorization.

28608132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340587 (or 340585 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 28608132 is about 5348.6570277033. The cubic root of 28608132 is about 305.8415600810.

The spelling of 28608132 in words is "twenty-eight million, six hundred eight thousand, one hundred thirty-two".