12528456 has 32 divisors (see below), whose sum is σ = 33164640. Its totient is φ = 3930368.

The previous prime is 12528449. The next prime is 12528457. The reversal of 12528456 is 65482521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12528457) 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 7 ways as a sum of consecutive naturals, for example, 14946 + ... + 15761.

It is an arithmetic number, because the mean of its divisors is an integer number (1036395).

Almost surely, 2^12528456 is an apocalyptic number.

It is an amenable number.

12528456 is an abundant number, since it is smaller than the sum of its proper divisors (20636184).

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

12528456 is a wasteful number, since it uses less digits than its factorization.

12528456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30733 (or 30729 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 12528456 is about 3539.5559043473. Note that the first 3 decimals coincide. The cubic root of 12528456 is about 232.2554162830.

The spelling of 12528456 in words is "twelve million, five hundred twenty-eight thousand, four hundred fifty-six".