40220404440 has 64 divisors (see below), whose sum is σ = 121429812960. Its totient is φ = 10657121280.

The previous prime is 40220404439. The next prime is 40220404447. The reversal of 40220404440 is 4440402204.

40220404440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 40220404440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220404447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1048581 + ... + 1086260.

Almost surely, 2^40220404440 is an apocalyptic number.

40220404440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40220404440 is an abundant number, since it is smaller than the sum of its proper divisors (81209408520).

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

40220404440 is a wasteful number, since it uses less digits than its factorization.

40220404440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135012 (or 2135008 counting only the distinct ones).

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

Adding to 40220404440 its reverse (4440402204), we get a palindrome (44660806644).

The spelling of 40220404440 in words is "forty billion, two hundred twenty million, four hundred four thousand, four hundred forty".