12130340 has 24 divisors (see below), whose sum is σ = 25539192. Its totient is φ = 4839680.

The previous prime is 12130319. The next prime is 12130351. The reversal of 12130340 is 4303121.

It can be written as a sum of positive squares in 4 ways, for example, as 33856 + 12096484 = 184^2 + 3478^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14822 + ... + 15618.

It is an arithmetic number, because the mean of its divisors is an integer number (1064133).

Almost surely, 2^12130340 is an apocalyptic number.

12130340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130340 is an abundant number, since it is smaller than the sum of its proper divisors (13408852).

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

12130340 is a wasteful number, since it uses less digits than its factorization.

12130340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12130340 is about 3482.8637642032. The cubic root of 12130340 is about 229.7687657123.

Adding to 12130340 its reverse (4303121), we get a palindrome (16433461).

The spelling of 12130340 in words is "twelve million, one hundred thirty thousand, three hundred forty".