40442244424420 has 96 divisors (see below), whose sum is σ = 87808544087040. Its totient is φ = 15630041978880.

The previous prime is 40442244424391. The next prime is 40442244424423. The reversal of 40442244424420 is 2442444224404.

It is not an unprimeable number, because it can be changed into a prime (40442244424423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1546358064 + ... + 1546384216.

It is an arithmetic number, because the mean of its divisors is an integer number (914672334240).

Almost surely, 2^{40442244424420} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40442244424420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43904272043520).

40442244424420 is an abundant number, since it is smaller than the sum of its proper divisors (47366299662620).

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

40442244424420 is a wasteful number, since it uses less digits than its factorization.

40442244424420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30085 (or 30083 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 40.

Adding to 40442244424420 its reverse (2442444224404), we get a palindrome (42884688648824).

The spelling of 40442244424420 in words is "forty trillion, four hundred forty-two billion, two hundred forty-four million, four hundred twenty-four thousand, four hundred twenty".