28499332 has 6 divisors (see below), whose sum is σ = 49873838. Its totient is φ = 14249664.

The previous prime is 28499311. The next prime is 28499333. The reversal of 28499332 is 23399482.

It can be written as a sum of positive squares in only one way, i.e., 24443136 + 4056196 = 4944^2 + 2014^2 .

It is not an unprimeable number, because it can be changed into a prime (28499333) 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 as a sum of consecutive naturals, namely, 3562413 + ... + 3562420.

Almost surely, 2^28499332 is an apocalyptic number.

It is an amenable number.

28499332 is a deficient number, since it is larger than the sum of its proper divisors (21374506).

28499332 is a wasteful number, since it uses less digits than its factorization.

28499332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7124837 (or 7124835 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The square root of 28499332 is about 5338.4765617168. The cubic root of 28499332 is about 305.4533507112.

The spelling of 28499332 in words is "twenty-eight million, four hundred ninety-nine thousand, three hundred thirty-two".