12380550 has 96 divisors (see below), whose sum is σ = 37830912. Its totient is φ = 2609280.

The previous prime is 12380531. The next prime is 12380561. The reversal of 12380550 is 5508321.

It is a self number, because there is not a number n which added to its sum of digits gives 12380550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13197 + ... + 14103.

It is an arithmetic number, because the mean of its divisors is an integer number (394072).

Almost surely, 2^12380550 is an apocalyptic number.

12380550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12380550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18915456).

12380550 is an abundant number, since it is smaller than the sum of its proper divisors (25450362).

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

12380550 is a wasteful number, since it uses less digits than its factorization.

12380550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942 (or 937 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 12380550 is about 3518.6005740919. The cubic root of 12380550 is about 231.3378239588.

Adding to 12380550 its reverse (5508321), we get a palindrome (17888871).

The spelling of 12380550 in words is "twelve million, three hundred eighty thousand, five hundred fifty".