12142344 has 32 divisors (see below), whose sum is σ = 31677120. Its totient is φ = 3871296.

The previous prime is 12142337. The next prime is 12142357. The reversal of 12142344 is 44324121.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12142344.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10447 + ... + 11550.

It is an arithmetic number, because the mean of its divisors is an integer number (989910).

Almost surely, 2^12142344 is an apocalyptic number.

It is an amenable number.

12142344 is an abundant number, since it is smaller than the sum of its proper divisors (19534776).

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

12142344 is a wasteful number, since it uses less digits than its factorization.

12142344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22029 (or 22025 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 12142344 is about 3484.5866325864. The cubic root of 12142344 is about 229.8445326174.

Adding to 12142344 its reverse (44324121), we get a palindrome (56466465).

The spelling of 12142344 in words is "twelve million, one hundred forty-two thousand, three hundred forty-four".