28308352 has 16 divisors (see below), whose sum is σ = 56395800. Its totient is φ = 14154112.

The previous prime is 28308341. The next prime is 28308353. The reversal of 28308352 is 25380382.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28308353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110452 + ... + 110707.

Almost surely, 2^28308352 is an apocalyptic number.

It is an amenable number.

28308352 is a deficient number, since it is larger than the sum of its proper divisors (28087448).

28308352 is an equidigital number, since it uses as much as digits as its factorization.

28308352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221173 (or 221161 counting only the distinct ones).

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

The square root of 28308352 is about 5320.5593690889. The cubic root of 28308352 is about 304.7695186094.

The spelling of 28308352 in words is "twenty-eight million, three hundred eight thousand, three hundred fifty-two".