12380005 has 32 divisors (see below), whose sum is σ = 17169408. Its totient is φ = 8486400.

The previous prime is 12379987. The next prime is 12380009. The reversal of 12380005 is 50008321.

It is a happy number.

It is not a de Polignac number, because 12380005 - 2⁵ = 12379973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12380009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90297 + ... + 90433.

It is an arithmetic number, because the mean of its divisors is an integer number (536544).

Almost surely, 2^12380005 is an apocalyptic number.

It is an amenable number.

12380005 is a deficient number, since it is larger than the sum of its proper divisors (4789403).

12380005 is a wasteful number, since it uses less digits than its factorization.

12380005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 12380005 is about 3518.5231276773. The cubic root of 12380005 is about 231.3344293610.

Adding to 12380005 its reverse (50008321), we get a palindrome (62388326).

The spelling of 12380005 in words is "twelve million, three hundred eighty thousand, five".