43144402340 has 192 divisors, whose sum is σ = 108180334080. Its totient is φ = 14291312640.

The previous prime is 43144402283. The next prime is 43144402349. The reversal of 43144402340 is 4320444134.

It is a happy number.

It is a super-2 number, since 2×43144402340² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43144402349) 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 63 ways as a sum of consecutive naturals, for example, 39545195 + ... + 39546285.

It is an arithmetic number, because the mean of its divisors is an integer number (563439240).

Almost surely, 2^43144402340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43144402340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54090167040).

43144402340 is an abundant number, since it is smaller than the sum of its proper divisors (65035931740).

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

43144402340 is a wasteful number, since it uses less digits than its factorization.

43144402340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 43144402340 its reverse (4320444134), we get a palindrome (47464846474).

The spelling of 43144402340 in words is "forty-three billion, one hundred forty-four million, four hundred two thousand, three hundred forty".