40440222440 has 64 divisors (see below), whose sum is σ = 95950612800. Its totient is φ = 15297334272.

The previous prime is 40440222391. The next prime is 40440222451. The reversal of 40440222440 is 4422204404.

40440222440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 380624 + ... + 475136.

It is an arithmetic number, because the mean of its divisors is an integer number (1499228325).

Almost surely, 2^40440222440 is an apocalyptic number.

40440222440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40440222440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47975306400).

40440222440 is an abundant number, since it is smaller than the sum of its proper divisors (55510390360).

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

40440222440 is a wasteful number, since it uses less digits than its factorization.

40440222440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95106 (or 95102 counting only the distinct ones).

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

Adding to 40440222440 its reverse (4422204404), we get a palindrome (44862426844).

The spelling of 40440222440 in words is "forty billion, four hundred forty million, two hundred twenty-two thousand, four hundred forty".