43224432440 has 32 divisors (see below), whose sum is σ = 111148541280. Its totient is φ = 14819805312.

The previous prime is 43224432431. The next prime is 43224432463. The reversal of 43224432440 is 4423442234.

It is a junction number, because it is equal to n+sod(n) for n = 43224432397 and 43224432406.

It is a congruent number.

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, 77186207 + ... + 77186766.

It is an arithmetic number, because the mean of its divisors is an integer number (3473391915).

Almost surely, 2^43224432440 is an apocalyptic number.

43224432440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43224432440 is an abundant number, since it is smaller than the sum of its proper divisors (67924108840).

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

43224432440 is a wasteful number, since it uses less digits than its factorization.

43224432440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154372991 (or 154372987 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 43224432440 its reverse (4423442234), we get a palindrome (47647874674).

The spelling of 43224432440 in words is "forty-three billion, two hundred twenty-four million, four hundred thirty-two thousand, four hundred forty".