43422142420 has 24 divisors (see below), whose sum is σ = 91424600064. Its totient is φ = 17323504416.

The previous prime is 43422142409. The next prime is 43422142447. The reversal of 43422142420 is 2424122434.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2826684 + ... + 2842003.

It is an arithmetic number, because the mean of its divisors is an integer number (3809358336).

Almost surely, 2^43422142420 is an apocalyptic number.

It is an amenable number.

43422142420 is an abundant number, since it is smaller than the sum of its proper divisors (48002457644).

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

43422142420 is a wasteful number, since it uses less digits than its factorization.

43422142420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5669079 (or 5669077 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 43422142420 its reverse (2424122434), we get a palindrome (45846264854).

The spelling of 43422142420 in words is "forty-three billion, four hundred twenty-two million, one hundred forty-two thousand, four hundred twenty".