28352308 has 12 divisors (see below), whose sum is σ = 50770720. Its totient is φ = 13846392.

The previous prime is 28352263. The next prime is 28352309. The reversal of 28352308 is 80325382.

It is a self number, because there is not a number n which added to its sum of digits gives 28352308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28352309) 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 in 3 ways as a sum of consecutive naturals, for example, 82248 + ... + 82591.

Almost surely, 2^28352308 is an apocalyptic number.

It is an amenable number.

28352308 is a deficient number, since it is larger than the sum of its proper divisors (22418412).

28352308 is a wasteful number, since it uses less digits than its factorization.

28352308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164886 (or 164884 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 28352308 is about 5324.6885354920. The cubic root of 28352308 is about 304.9271813977.

The spelling of 28352308 in words is "twenty-eight million, three hundred fifty-two thousand, three hundred eight".