40440222020 has 48 divisors (see below), whose sum is σ = 93084054336. Its totient is φ = 14635824000.

The previous prime is 40440221963. The next prime is 40440222037. The reversal of 40440222020 is 2022204404.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40440221983 and 40440222001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389171 + ... + 482010.

It is an arithmetic number, because the mean of its divisors is an integer number (1939251132).

Almost surely, 2^40440222020 is an apocalyptic number.

It is an amenable number.

40440222020 is an abundant number, since it is smaller than the sum of its proper divisors (52643832316).

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

40440222020 is a wasteful number, since it uses less digits than its factorization.

40440222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871412 (or 871410 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40440222020 its reverse (2022204404), we get a palindrome (42462426424).

The spelling of 40440222020 in words is "forty billion, four hundred forty million, two hundred twenty-two thousand, twenty".