12017328 has 20 divisors (see below), whose sum is σ = 31044888. Its totient is φ = 4005760.

The previous prime is 12017303. The next prime is 12017353. The reversal of 12017328 is 82371021.

It is an interprime number because it is at equal distance from previous prime (12017303) and next prime (12017353).

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 = 12017298 and 12017307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125133 + ... + 125228.

Almost surely, 2^12017328 is an apocalyptic number.

It is an amenable number.

12017328 is an abundant number, since it is smaller than the sum of its proper divisors (19027560).

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

12017328 is a wasteful number, since it uses less digits than its factorization.

12017328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250372 (or 250366 counting only the distinct ones).

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

The square root of 12017328 is about 3466.6017942648. The cubic root of 12017328 is about 229.0529933357.

Adding to 12017328 its reverse (82371021), we get a palindrome (94388349).

The spelling of 12017328 in words is "twelve million, seventeen thousand, three hundred twenty-eight".