42243443020 has 24 divisors (see below), whose sum is σ = 90598705344. Its totient is φ = 16537858176.

The previous prime is 42243443017. The next prime is 42243443057. The reversal of 42243443020 is 2034434224.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42243443020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22468977 + ... + 22470856.

It is an arithmetic number, because the mean of its divisors is an integer number (3774946056).

Almost surely, 2^42243443020 is an apocalyptic number.

It is an amenable number.

42243443020 is an abundant number, since it is smaller than the sum of its proper divisors (48355262324).

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

42243443020 is a wasteful number, since it uses less digits than its factorization.

42243443020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44939889 (or 44939887 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 42243443020 its reverse (2034434224), we get a palindrome (44277877244).

The spelling of 42243443020 in words is "forty-two billion, two hundred forty-three million, four hundred forty-three thousand, twenty".