12328740 has 144 divisors (see below), whose sum is σ = 41260800. Its totient is φ = 3055104.

The previous prime is 12328721. The next prime is 12328747. The reversal of 12328740 is 4782321.

12328740 is digitally balanced in base 2, because in such base 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 (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12328747) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156021 + ... + 156099.

Almost surely, 2^12328740 is an apocalyptic number.

12328740 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 12328740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20630400).

12328740 is an abundant number, since it is smaller than the sum of its proper divisors (28932060).

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

12328740 is a wasteful number, since it uses less digits than its factorization.

12328740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 12328740 is about 3511.2305535239. The cubic root of 12328740 is about 231.0146727060.

The spelling of 12328740 in words is "twelve million, three hundred twenty-eight thousand, seven hundred forty".