12021792 has 48 divisors (see below), whose sum is σ = 31907232. Its totient is φ = 3962880.

The previous prime is 12021761. The next prime is 12021797. The reversal of 12021792 is 29712021.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is not an unprimeable number, because it can be changed into a prime (12021797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8667 + ... + 9957.

It is an arithmetic number, because the mean of its divisors is an integer number (664734).

Almost surely, 2^12021792 is an apocalyptic number.

12021792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12021792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15953616).

12021792 is an abundant number, since it is smaller than the sum of its proper divisors (19885440).

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

12021792 is a wasteful number, since it uses less digits than its factorization.

12021792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401 (or 1393 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 12021792 is about 3467.2455926859. The cubic root of 12021792 is about 229.0813514417.

It can be divided in two parts, 120 and 21792, that added together give a palindrome (21912).

The spelling of 12021792 in words is "twelve million, twenty-one thousand, seven hundred ninety-two".