12261430 has 32 divisors (see below), whose sum is σ = 23420160. Its totient is φ = 4613760.

The previous prime is 12261409. The next prime is 12261443. The reversal of 12261430 is 3416221.

12261430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12261398 and 12261407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10936 + ... + 12004.

It is an arithmetic number, because the mean of its divisors is an integer number (731880).

Almost surely, 2^12261430 is an apocalyptic number.

12261430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12261430 is a deficient number, since it is larger than the sum of its proper divisors (11158730).

12261430 is a wasteful number, since it uses less digits than its factorization.

12261430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 12261430 is about 3501.6324764315. The cubic root of 12261430 is about 230.5934893041.

Adding to 12261430 its reverse (3416221), we get a palindrome (15677651).

The spelling of 12261430 in words is "twelve million, two hundred sixty-one thousand, four hundred thirty".