28672332 has 24 divisors (see below), whose sum is σ = 72048816. Its totient is φ = 8822208.

The previous prime is 28672313. The next prime is 28672337. The reversal of 28672332 is 23327682.

It is a junction number, because it is equal to n+sod(n) for n = 28672293 and 28672302.

It is not an unprimeable number, because it can be changed into a prime (28672337) 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 7 ways as a sum of consecutive naturals, for example, 91743 + ... + 92054.

It is an arithmetic number, because the mean of its divisors is an integer number (3002034).

Almost surely, 2^28672332 is an apocalyptic number.

It is an amenable number.

28672332 is an abundant number, since it is smaller than the sum of its proper divisors (43376484).

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

28672332 is a wasteful number, since it uses less digits than its factorization.

28672332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183817 (or 183815 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 28672332 is about 5354.6551709704. The cubic root of 28672332 is about 306.0701705879.

The spelling of 28672332 in words is "twenty-eight million, six hundred seventy-two thousand, three hundred thirty-two".