1232040144 has 20 divisors (see below), whose sum is σ = 3182770496. Its totient is φ = 410680032.

The previous prime is 1232040143. The next prime is 1232040157. The reversal of 1232040144 is 4410402321.

It is a self number, because there is not a number n which added to its sum of digits gives 1232040144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232040143) 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, 12833704 + ... + 12833799.

Almost surely, 2^1232040144 is an apocalyptic number.

It is an amenable number.

1232040144 is an abundant number, since it is smaller than the sum of its proper divisors (1950730352).

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

1232040144 is a wasteful number, since it uses less digits than its factorization.

1232040144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25667514 (or 25667508 counting only the distinct ones).

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

The square root of 1232040144 is about 35100.4293990829. The cubic root of 1232040144 is about 1072.0333257999.

Adding to 1232040144 its reverse (4410402321), we get a palindrome (5642442465).

The spelling of 1232040144 in words is "one billion, two hundred thirty-two million, forty thousand, one hundred forty-four".