12271430 has 8 divisors (see below), whose sum is σ = 22088592. Its totient is φ = 4908568.

The previous prime is 12271429. The next prime is 12271439. The reversal of 12271430 is 3417221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12271439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613562 + ... + 613581.

It is an arithmetic number, because the mean of its divisors is an integer number (2761074).

Almost surely, 2^12271430 is an apocalyptic number.

12271430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12271430 is a deficient number, since it is larger than the sum of its proper divisors (9817162).

12271430 is a wasteful number, since it uses less digits than its factorization.

12271430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227150.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12271430 is about 3503.0600908349. The cubic root of 12271430 is about 230.6561603057.

Adding to 12271430 its reverse (3417221), we get a palindrome (15688651).

The spelling of 12271430 in words is "twelve million, two hundred seventy-one thousand, four hundred thirty".