12017412 has 36 divisors (see below), whose sum is σ = 33140016. Its totient is φ = 3641520.

The previous prime is 12017407. The next prime is 12017413. The reversal of 12017412 is 21471021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12017413) 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 11 ways as a sum of consecutive naturals, for example, 14778 + ... + 15569.

It is an arithmetic number, because the mean of its divisors is an integer number (920556).

Almost surely, 2^12017412 is an apocalyptic number.

12017412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12017412 is an abundant number, since it is smaller than the sum of its proper divisors (21122604).

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

12017412 is a wasteful number, since it uses less digits than its factorization.

12017412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30368 (or 30363 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 12017412 is about 3466.6139098550. The cubic root of 12017412 is about 229.0535270208.

Adding to 12017412 its reverse (21471021), we get a palindrome (33488433).

The spelling of 12017412 in words is "twelve million, seventeen thousand, four hundred twelve".