12268340 has 24 divisors (see below), whose sum is σ = 29444352. Its totient is φ = 4206240.

The previous prime is 12268331. The next prime is 12268351. The reversal of 12268340 is 4386221.

Added to its reverse (4386221) it gives a square (16654561 = 4081²).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43676 + ... + 43955.

It is an arithmetic number, because the mean of its divisors is an integer number (1226848).

Almost surely, 2^12268340 is an apocalyptic number.

12268340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12268340 is an abundant number, since it is smaller than the sum of its proper divisors (17176012).

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

12268340 is a wasteful number, since it uses less digits than its factorization.

12268340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87647 (or 87645 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 12268340 is about 3502.6190201048. The cubic root of 12268340 is about 230.6367986022.

Adding to 12268340 its reverse (4386221), we get a square (16654561 = 4081²).

The spelling of 12268340 in words is "twelve million, two hundred sixty-eight thousand, three hundred forty".