12042320 has 40 divisors (see below), whose sum is σ = 28275720. Its totient is φ = 4769280.

The previous prime is 12042319. The next prime is 12042343. The reversal of 12042320 is 2324021.

It can be written as a sum of positive squares in 4 ways, for example, as 1827904 + 10214416 = 1352^2 + 3196^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 12042295 and 12042304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8030 + ... + 9410.

It is an arithmetic number, because the mean of its divisors is an integer number (706893).

Almost surely, 2^12042320 is an apocalyptic number.

12042320 is a gapful number since it is divisible by the number (10) 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 12042320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14137860).

12042320 is an abundant number, since it is smaller than the sum of its proper divisors (16233400).

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

12042320 is a wasteful number, since it uses less digits than its factorization.

12042320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 12042320 is about 3470.2046049189. The cubic root of 12042320 is about 229.2116677834.

Adding to 12042320 its reverse (2324021), we get a palindrome (14366341).

The spelling of 12042320 in words is "twelve million, forty-two thousand, three hundred twenty".