40544444416 has 112 divisors (see below), whose sum is σ = 93044954880. Its totient is φ = 17305436160.

The previous prime is 40544444383. The next prime is 40544444417. The reversal of 40544444416 is 61444444504.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×40544444416² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40544444417) 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, 15538920 + ... + 15541528.

Almost surely, 2^40544444416 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 40544444416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46522477440).

40544444416 is an abundant number, since it is smaller than the sum of its proper divisors (52500510464).

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

40544444416 is an equidigital number, since it uses as much as digits as its factorization.

40544444416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913 (or 2889 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 40.

The spelling of 40544444416 in words is "forty billion, five hundred forty-four million, four hundred forty-four thousand, four hundred sixteen".