12239040 has 224 divisors, whose sum is σ = 45354240. Its totient is φ = 2764800.

The previous prime is 12239027. The next prime is 12239041. The reversal of 12239040 is 4093221.

It is a junction number, because it is equal to n+sod(n) for n = 12238998 and 12239016.

It is not an unprimeable number, because it can be changed into a prime (12239041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200610 + ... + 200670.

Almost surely, 2^12239040 is an apocalyptic number.

12239040 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 12239040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22677120).

12239040 is an abundant number, since it is smaller than the sum of its proper divisors (33115200).

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

12239040 is a wasteful number, since it uses less digits than its factorization.

12239040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 101 counting only the distinct ones).

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

The square root of 12239040 is about 3498.4339353488. The cubic root of 12239040 is about 230.4530452710.

The spelling of 12239040 in words is "twelve million, two hundred thirty-nine thousand, forty".