12102340 has 12 divisors (see below), whose sum is σ = 25414956. Its totient is φ = 4840928.

The previous prime is 12102331. The next prime is 12102371. The reversal of 12102340 is 4320121.

It can be written as a sum of positive squares in 2 ways, for example, as 5721664 + 6380676 = 2392^2 + 2526^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12102340.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302539 + ... + 302578.

It is an arithmetic number, because the mean of its divisors is an integer number (2117913).

Almost surely, 2^12102340 is an apocalyptic number.

12102340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102340 is an abundant number, since it is smaller than the sum of its proper divisors (13312616).

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

12102340 is a wasteful number, since it uses less digits than its factorization.

12102340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605126 (or 605124 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12102340 is about 3478.8417612763. The cubic root of 12102340 is about 229.5918406939.

Adding to 12102340 its reverse (4320121), we get a palindrome (16422461).

The spelling of 12102340 in words is "twelve million, one hundred two thousand, three hundred forty".