12128342 has 8 divisors (see below), whose sum is σ = 18252696. Its totient is φ = 6044112.

The previous prime is 12128339. The next prime is 12128357. The reversal of 12128342 is 24382121.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9263 + ... + 10490.

It is an arithmetic number, because the mean of its divisors is an integer number (2281587).

Almost surely, 2^12128342 is an apocalyptic number.

12128342 is a deficient number, since it is larger than the sum of its proper divisors (6124354).

12128342 is a wasteful number, since it uses less digits than its factorization.

12128342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20062.

The product of its digits is 768, while the sum is 23.

The square root of 12128342 is about 3482.5769194664. The cubic root of 12128342 is about 229.7561498747.

The spelling of 12128342 in words is "twelve million, one hundred twenty-eight thousand, three hundred forty-two".