43420351044 has 24 divisors (see below), whose sum is σ = 115787603008. Its totient is φ = 12405814560.

The previous prime is 43420351043. The next prime is 43420351087. The reversal of 43420351044 is 44015302434.

It is not an unprimeable number, because it can be changed into a prime (43420351043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258454387 + ... + 258454554.

Almost surely, 2^43420351044 is an apocalyptic number.

It is an amenable number.

43420351044 is an abundant number, since it is smaller than the sum of its proper divisors (72367251964).

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

43420351044 is a wasteful number, since it uses less digits than its factorization.

43420351044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516908955 (or 516908953 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 43420351044 its reverse (44015302434), we get a palindrome (87435653478).

The spelling of 43420351044 in words is "forty-three billion, four hundred twenty million, three hundred fifty-one thousand, forty-four".