28252064 has 12 divisors (see below), whose sum is σ = 55621314. Its totient is φ = 14126016.

The previous prime is 28252057. The next prime is 28252117. The reversal of 28252064 is 46025282.

It can be written as a sum of positive squares in only one way, i.e., 15147664 + 13104400 = 3892^2 + 3620^2 .

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 as a sum of consecutive naturals, namely, 441407 + ... + 441470.

Almost surely, 2^28252064 is an apocalyptic number.

It is an amenable number.

28252064 is a deficient number, since it is larger than the sum of its proper divisors (27369250).

28252064 is an equidigital number, since it uses as much as digits as its factorization.

28252064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882887 (or 882879 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 28252064 is about 5315.2670676082. The cubic root of 28252064 is about 304.5673845134.

The spelling of 28252064 in words is "twenty-eight million, two hundred fifty-two thousand, sixty-four".