12182720 has 56 divisors (see below), whose sum is σ = 31656528. Its totient is φ = 4428800.

The previous prime is 12182719. The next prime is 12182749. The reversal of 12182720 is 2728121.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1790 + ... + 5250.

Almost surely, 2^12182720 is an apocalyptic number.

12182720 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 12182720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15828264).

12182720 is an abundant number, since it is smaller than the sum of its proper divisors (19473808).

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

12182720 is a wasteful number, since it uses less digits than its factorization.

12182720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489 (or 3479 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 12182720 is about 3490.3753379830. The cubic root of 12182720 is about 230.0990121908.

The spelling of 12182720 in words is "twelve million, one hundred eighty-two thousand, seven hundred twenty".