43202423440 has 80 divisors (see below), whose sum is σ = 115344313920. Its totient is φ = 14883125760.

The previous prime is 43202423413. The next prime is 43202423447. The reversal of 43202423440 is 4432420234.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×43202423440² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43202423399 and 43202423408.

It is not an unprimeable number, because it can be changed into a prime (43202423447) 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 15 ways as a sum of consecutive naturals, for example, 1275219 + ... + 1308658.

It is an arithmetic number, because the mean of its divisors is an integer number (1441803924).

Almost surely, 2^43202423440 is an apocalyptic number.

43202423440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43202423440 is an abundant number, since it is smaller than the sum of its proper divisors (72141890480).

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

43202423440 is a wasteful number, since it uses less digits than its factorization.

43202423440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583920 (or 2583914 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 43202423440 its reverse (4432420234), we get a palindrome (47634843674).

The spelling of 43202423440 in words is "forty-three billion, two hundred two million, four hundred twenty-three thousand, four hundred forty".