12020424 has 64 divisors (see below), whose sum is σ = 32961600. Its totient is φ = 3630336.

The previous prime is 12020417. The next prime is 12020431. The reversal of 12020424 is 42402021.

It is an interprime number because it is at equal distance from previous prime (12020417) and next prime (12020431).

It is a congruent number.

It is an unprimeable number.

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, 18082 + ... + 18734.

It is an arithmetic number, because the mean of its divisors is an integer number (515025).

Almost surely, 2^12020424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12020424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16480800).

12020424 is an abundant number, since it is smaller than the sum of its proper divisors (20941176).

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

12020424 is a wasteful number, since it uses less digits than its factorization.

12020424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 12020424 is about 3467.0483123256. The cubic root of 12020424 is about 229.0726618005.

Adding to 12020424 its reverse (42402021), we get a palindrome (54422445).

The spelling of 12020424 in words is "twelve million, twenty thousand, four hundred twenty-four".