12340530 has 24 divisors (see below), whose sum is σ = 32085612. Its totient is φ = 3290784.

The previous prime is 12340513. The next prime is 12340541. The reversal of 12340530 is 3504321.

12340530 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 2 ways, for example, as 12089529 + 251001 = 3477^2 + 501^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68469 + ... + 68648.

Almost surely, 2^12340530 is an apocalyptic number.

12340530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12340530 is an abundant number, since it is smaller than the sum of its proper divisors (19745082).

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

12340530 is a wasteful number, since it uses less digits than its factorization.

12340530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137130 (or 137127 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 12340530 is about 3512.9090509149. The cubic root of 12340530 is about 231.0882891837.

Adding to 12340530 its reverse (3504321), we get a palindrome (15844851).

The spelling of 12340530 in words is "twelve million, three hundred forty thousand, five hundred thirty".