42224040420 has 96 divisors (see below), whose sum is σ = 123226521600. Its totient is φ = 10790686080.

The previous prime is 42224040407. The next prime is 42224040427. The reversal of 42224040420 is 2404042224.

It is not an unprimeable number, because it can be changed into a prime (42224040427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81381 + ... + 301779.

It is an arithmetic number, because the mean of its divisors is an integer number (1283609600).

Almost surely, 2^42224040420 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 42224040420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61613260800).

42224040420 is an abundant number, since it is smaller than the sum of its proper divisors (81002481180).

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

42224040420 is a wasteful number, since it uses less digits than its factorization.

42224040420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220545 (or 220543 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 42224040420 its reverse (2404042224), we get a palindrome (44628082644).

The spelling of 42224040420 in words is "forty-two billion, two hundred twenty-four million, forty thousand, four hundred twenty".