43442342320 has 120 divisors (see below), whose sum is σ = 112327850736. Its totient is φ = 15606549504.

The previous prime is 43442342261. The next prime is 43442342327. The reversal of 43442342320 is 2324324434.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (43442342327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 456819 + ... + 543661.

Almost surely, 2^43442342320 is an apocalyptic number.

43442342320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43442342320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56163925368).

43442342320 is an abundant number, since it is smaller than the sum of its proper divisors (68885508416).

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

43442342320 is a wasteful number, since it uses less digits than its factorization.

43442342320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86919 (or 86900 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 43442342320 its reverse (2324324434), we get a palindrome (45766666754).

The spelling of 43442342320 in words is "forty-three billion, four hundred forty-two million, three hundred forty-two thousand, three hundred twenty".