12043920 has 160 divisors (see below), whose sum is σ = 43711488. Its totient is φ = 2686464.

The previous prime is 12043919. The next prime is 12043931. The reversal of 12043920 is 2934021.

12043920 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112507 + ... + 112613.

Almost surely, 2^12043920 is an apocalyptic number.

12043920 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 12043920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21855744).

12043920 is an abundant number, since it is smaller than the sum of its proper divisors (31667568).

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

12043920 is a wasteful number, since it uses less digits than its factorization.

12043920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12043920 is about 3470.4351312191. The cubic root of 12043920 is about 229.2218187185.

Adding to 12043920 its reverse (2934021), we get a palindrome (14977941).

The spelling of 12043920 in words is "twelve million, forty-three thousand, nine hundred twenty".