42447022020 has 288 divisors, whose sum is σ = 144390695904. Its totient is φ = 10025164800.

The previous prime is 42447021983. The next prime is 42447022027. The reversal of 42447022020 is 2022074424.

It can be written as a sum of positive squares in 16 ways, for example, as 34515694656 + 7931327364 = 185784^2 + 89058^2 .

It is not an unprimeable number, because it can be changed into a prime (42447022027) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5848714 + ... + 5855966.

It is an arithmetic number, because the mean of its divisors is an integer number (501356583).

Almost surely, 2^42447022020 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 42447022020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72195347952).

42447022020 is an abundant number, since it is smaller than the sum of its proper divisors (101943673884).

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

42447022020 is a wasteful number, since it uses less digits than its factorization.

42447022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7383 (or 7378 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

Adding to 42447022020 its reverse (2022074424), we get a palindrome (44469096444).

The spelling of 42447022020 in words is "forty-two billion, four hundred forty-seven million, twenty-two thousand, twenty".