12229839 has 8 divisors (see below), whose sum is σ = 18118320. Its totient is φ = 8153208.

The previous prime is 12229807. The next prime is 12229843. The reversal of 12229839 is 93892221.

It is not a de Polignac number, because 12229839 - 2⁵ = 12229807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12229879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226452 + ... + 226505.

It is an arithmetic number, because the mean of its divisors is an integer number (2264790).

Almost surely, 2^12229839 is an apocalyptic number.

12229839 is a deficient number, since it is larger than the sum of its proper divisors (5888481).

12229839 is an equidigital number, since it uses as much as digits as its factorization.

12229839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452966 (or 452960 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 12229839 is about 3497.1186711349. The cubic root of 12229839 is about 230.3952812076.

The spelling of 12229839 in words is "twelve million, two hundred twenty-nine thousand, eight hundred thirty-nine".