1232440140 has 48 divisors (see below), whose sum is σ = 3477196800. Its totient is φ = 326139840.

The previous prime is 1232440087. The next prime is 1232440163. The reversal of 1232440140 is 410442321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70540 + ... + 86259.

It is an arithmetic number, because the mean of its divisors is an integer number (72441600).

Almost surely, 2^1232440140 is an apocalyptic number.

1232440140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232440140 is an abundant number, since it is smaller than the sum of its proper divisors (2244756660).

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

1232440140 is a wasteful number, since it uses less digits than its factorization.

1232440140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156942 (or 156940 counting only the distinct ones).

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

The square root of 1232440140 is about 35106.1268156998. The cubic root of 1232440140 is about 1072.1493292291.

Adding to 1232440140 its reverse (410442321), we get a palindrome (1642882461).

The spelling of 1232440140 in words is "one billion, two hundred thirty-two million, four hundred forty thousand, one hundred forty".