12106340 has 24 divisors (see below), whose sum is σ = 26301240. Its totient is φ = 4675328.

The previous prime is 12106309. The next prime is 12106343. The reversal of 12106340 is 4360121.

12106340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 708964 + 11397376 = 842^2 + 3376^2 .

It is not an unprimeable number, because it can be changed into a prime (12106343) 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, 9857 + ... + 11016.

It is an arithmetic number, because the mean of its divisors is an integer number (1095885).

Almost surely, 2^12106340 is an apocalyptic number.

12106340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12106340 is an abundant number, since it is smaller than the sum of its proper divisors (14194900).

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

12106340 is a wasteful number, since it uses less digits than its factorization.

12106340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20911 (or 20909 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 12106340 is about 3479.4166177680. The cubic root of 12106340 is about 229.6171323924.

Adding to 12106340 its reverse (4360121), we get a palindrome (16466461).

The spelling of 12106340 in words is "twelve million, one hundred six thousand, three hundred forty".