12388845 has 16 divisors (see below), whose sum is σ = 22654080. Its totient is φ = 5663424.

The previous prime is 12388841. The next prime is 12388867. The reversal of 12388845 is 54888321.

It is not a de Polignac number, because 12388845 - 2² = 12388841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12388841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58890 + ... + 59099.

It is an arithmetic number, because the mean of its divisors is an integer number (1415880).

Almost surely, 2^12388845 is an apocalyptic number.

12388845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12388845 is a deficient number, since it is larger than the sum of its proper divisors (10265235).

12388845 is a wasteful number, since it uses less digits than its factorization.

12388845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118004.

The product of its digits is 61440, while the sum is 39.

The square root of 12388845 is about 3519.7791123876. The cubic root of 12388845 is about 231.3894780680.

The spelling of 12388845 in words is "twelve million, three hundred eighty-eight thousand, eight hundred forty-five".