28932488 has 64 divisors (see below), whose sum is σ = 61916400. Its totient is φ = 12579840.

The previous prime is 28932473. The next prime is 28932493. The reversal of 28932488 is 88423982.

It can be written as a sum of positive squares in 8 ways, for example, as 3912484 + 25020004 = 1978^2 + 5002^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 159758 + ... + 159938.

Almost surely, 2^28932488 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 28932488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30958200).

28932488 is an abundant number, since it is smaller than the sum of its proper divisors (32983912).

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

28932488 is a wasteful number, since it uses less digits than its factorization.

28932488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 278 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 28932488 is about 5378.8928228772. The cubic root of 28932488 is about 306.9930855357.

The spelling of 28932488 in words is "twenty-eight million, nine hundred thirty-two thousand, four hundred eighty-eight".