12039984 has 90 divisors (see below), whose sum is σ = 37090508. Its totient is φ = 3643200.

The previous prime is 12039947. The next prime is 12039991. The reversal of 12039984 is 48993021.

It is a super-2 number, since 2×12039984² = 289922429440512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17079 + ... + 17769.

Almost surely, 2^12039984 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 12039984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18545254).

12039984 is an abundant number, since it is smaller than the sum of its proper divisors (25050524).

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

12039984 is a wasteful number, since it uses less digits than its factorization.

12039984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 12039984 is about 3469.8680090171. The cubic root of 12039984 is about 229.1968458033.

It can be divided in two parts, 120 and 39984, that added together give a palindrome (40104).

The spelling of 12039984 in words is "twelve million, thirty-nine thousand, nine hundred eighty-four".