40220404244 has 24 divisors (see below), whose sum is σ = 77766308928. Its totient is φ = 18104324480.

The previous prime is 40220404199. The next prime is 40220404249. The reversal of 40220404244 is 44240402204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220404249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12856622 + ... + 12859749.

It is an arithmetic number, because the mean of its divisors is an integer number (3240262872).

Almost surely, 2^40220404244 is an apocalyptic number.

It is an amenable number.

40220404244 is a deficient number, since it is larger than the sum of its proper divisors (37545904684).

40220404244 is a wasteful number, since it uses less digits than its factorization.

40220404244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25716415 (or 25716413 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 40220404244 its reverse (44240402204), we get a palindrome (84460806448).

The spelling of 40220404244 in words is "forty billion, two hundred twenty million, four hundred four thousand, two hundred forty-four".