42224442420 has 24 divisors (see below), whose sum is σ = 118228438944. Its totient is φ = 11259851296.

The previous prime is 42224442371. The next prime is 42224442499. The reversal of 42224442420 is 2424442224.

It is a happy number.

42224442420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 351870294 + ... + 351870413.

It is an arithmetic number, because the mean of its divisors is an integer number (4926184956).

Almost surely, 2^42224442420 is an apocalyptic number.

It is an amenable number.

42224442420 is an abundant number, since it is smaller than the sum of its proper divisors (76003996524).

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

42224442420 is a wasteful number, since it uses less digits than its factorization.

42224442420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703740719 (or 703740717 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 42224442420 its reverse (2424442224), we get a palindrome (44648884644).

The spelling of 42224442420 in words is "forty-two billion, two hundred twenty-four million, four hundred forty-two thousand, four hundred twenty".