43232021240 has 16 divisors (see below), whose sum is σ = 97272047880. Its totient is φ = 17292808480.

The previous prime is 43232021227. The next prime is 43232021243. The reversal of 43232021240 is 4212023234.

It is a super-2 number, since 2×43232021240² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43232021243) 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, 540400226 + ... + 540400305.

Almost surely, 2^43232021240 is an apocalyptic number.

43232021240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43232021240 is an abundant number, since it is smaller than the sum of its proper divisors (54040026640).

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

43232021240 is a wasteful number, since it uses less digits than its factorization.

43232021240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080800542 (or 1080800538 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 43232021240 its reverse (4212023234), we get a palindrome (47444044474).

The spelling of 43232021240 in words is "forty-three billion, two hundred thirty-two million, twenty-one thousand, two hundred forty".