12039924 has 48 divisors (see below), whose sum is σ = 30566592. Its totient is φ = 3666432.

The previous prime is 12039917. The next prime is 12039941. The reversal of 12039924 is 42993021.

It is a junction number, because it is equal to n+sod(n) for n = 12039891 and 12039900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17287 + ... + 17969.

It is an arithmetic number, because the mean of its divisors is an integer number (636804).

Almost surely, 2^12039924 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 12039924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15283296).

12039924 is an abundant number, since it is smaller than the sum of its proper divisors (18526668).

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

12039924 is a wasteful number, since it uses less digits than its factorization.

12039924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 12039924 is about 3469.8593631443. The cubic root of 12039924 is about 229.1964650765.

The spelling of 12039924 in words is "twelve million, thirty-nine thousand, nine hundred twenty-four".