12380536 has 24 divisors (see below), whose sum is σ = 27004320. Its totient is φ = 5305776.

The previous prime is 12380531. The next prime is 12380561. The reversal of 12380536 is 63508321.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12380531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15400 + ... + 16183.

It is an arithmetic number, because the mean of its divisors is an integer number (1125180).

Almost surely, 2^12380536 is an apocalyptic number.

It is an amenable number.

12380536 is an abundant number, since it is smaller than the sum of its proper divisors (14623784).

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

12380536 is a wasteful number, since it uses less digits than its factorization.

12380536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31603 (or 31592 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 12380536 is about 3518.5985846641. The cubic root of 12380536 is about 231.3377367594.

Adding to 12380536 its reverse (63508321), we get a palindrome (75888857).

The spelling of 12380536 in words is "twelve million, three hundred eighty thousand, five hundred thirty-six".