12071328 has 24 divisors (see below), whose sum is σ = 31687488. Its totient is φ = 4023744.

The previous prime is 12071317. The next prime is 12071329. The reversal of 12071328 is 82317021.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 12071298 and 12071307.

It is not an unprimeable number, because it can be changed into a prime (12071329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62776 + ... + 62967.

It is an arithmetic number, because the mean of its divisors is an integer number (1320312).

Almost surely, 2^12071328 is an apocalyptic number.

It is an amenable number.

12071328 is an abundant number, since it is smaller than the sum of its proper divisors (19616160).

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

12071328 is a wasteful number, since it uses less digits than its factorization.

12071328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125756 (or 125748 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 12071328 is about 3474.3816716072. The cubic root of 12071328 is about 229.3955648073.

Adding to 12071328 its reverse (82317021), we get a palindrome (94388349).

The spelling of 12071328 in words is "twelve million, seventy-one thousand, three hundred twenty-eight".