12389732 has 24 divisors (see below), whose sum is σ = 22813056. Its totient is φ = 5876288.

The previous prime is 12389723. The next prime is 12389737. The reversal of 12389732 is 23798321.

12389732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12389692 and 12389701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12389737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12113 + ... + 13095.

It is an arithmetic number, because the mean of its divisors is an integer number (950544).

Almost surely, 2^12389732 is an apocalyptic number.

It is an amenable number.

12389732 is a deficient number, since it is larger than the sum of its proper divisors (10423324).

12389732 is a wasteful number, since it uses less digits than its factorization.

12389732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1145 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 12389732 is about 3519.9051123574. The cubic root of 12389732 is about 231.3950001746.

The spelling of 12389732 in words is "twelve million, three hundred eighty-nine thousand, seven hundred thirty-two".