40043222020 has 24 divisors (see below), whose sum is σ = 84169474200. Its totient is φ = 16002296832.

The previous prime is 40043221997. The next prime is 40043222041. The reversal of 40043222020 is 2022234004.

It can be written as a sum of positive squares in 4 ways, for example, as 598878784 + 39444343236 = 24472^2 + 198606^2 .

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, 915085 + ... + 957844.

It is an arithmetic number, because the mean of its divisors is an integer number (3507061425).

Almost surely, 2^40043222020 is an apocalyptic number.

It is an amenable number.

40043222020 is an abundant number, since it is smaller than the sum of its proper divisors (44126252180).

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

40043222020 is a wasteful number, since it uses less digits than its factorization.

40043222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874007 (or 1874005 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 40043222020 its reverse (2022234004), we get a palindrome (42065456024).

The spelling of 40043222020 in words is "forty billion, forty-three million, two hundred twenty-two thousand, twenty".