12232140 has 24 divisors (see below), whose sum is σ = 34250160. Its totient is φ = 3261888.

The previous prime is 12232117. The next prime is 12232141. The reversal of 12232140 is 4123221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (12232141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101875 + ... + 101994.

It is an arithmetic number, because the mean of its divisors is an integer number (1427090).

Almost surely, 2^12232140 is an apocalyptic number.

12232140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12232140 is an abundant number, since it is smaller than the sum of its proper divisors (22018020).

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

12232140 is a wasteful number, since it uses less digits than its factorization.

12232140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203881 (or 203879 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12232140 is about 3497.4476407803. The cubic root of 12232140 is about 230.4097296480.

Adding to 12232140 its reverse (4123221), we get a palindrome (16355361).

The spelling of 12232140 in words is "twelve million, two hundred thirty-two thousand, one hundred forty".