12328554 has 32 divisors (see below), whose sum is σ = 28448640. Its totient is φ = 3488832.

The previous prime is 12328543. The next prime is 12328559. The reversal of 12328554 is 45582321.

It is not an unprimeable number, because it can be changed into a prime (12328559) 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 15 ways as a sum of consecutive naturals, for example, 3232 + ... + 5924.

It is an arithmetic number, because the mean of its divisors is an integer number (889020).

Almost surely, 2^12328554 is an apocalyptic number.

12328554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12328554 is an abundant number, since it is smaller than the sum of its proper divisors (16120086).

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

12328554 is a wasteful number, since it uses less digits than its factorization.

12328554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814.

The product of its digits is 9600, while the sum is 30.

The square root of 12328554 is about 3511.2040669833. The cubic root of 12328554 is about 231.0135109505.

The spelling of 12328554 in words is "twelve million, three hundred twenty-eight thousand, five hundred fifty-four".