43422442440 has 512 divisors, whose sum is σ = 156163230720. Its totient is φ = 9550430208.

The previous prime is 43422442409. The next prime is 43422442477. The reversal of 43422442440 is 4424422434.

It is a super-2 number, since 2×43422442440² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 156759582 + ... + 156759858.

It is an arithmetic number, because the mean of its divisors is an integer number (305006310).

Almost surely, 2^43422442440 is an apocalyptic number.

43422442440 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 43422442440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78081615360).

43422442440 is an abundant number, since it is smaller than the sum of its proper divisors (112740788280).

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

43422442440 is a wasteful number, since it uses less digits than its factorization.

43422442440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 33.

Adding to 43422442440 its reverse (4424422434), we get a palindrome (47846864874).

The spelling of 43422442440 in words is "forty-three billion, four hundred twenty-two million, four hundred forty-two thousand, four hundred forty".