40836443520 has 128 divisors (see below), whose sum is σ = 130225644000. Its totient is φ = 10884743168.

The previous prime is 40836443513. The next prime is 40836443537. The reversal of 40836443520 is 2534463804.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

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, 6388486 + ... + 6394874.

Almost surely, 2^40836443520 is an apocalyptic number.

40836443520 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 40836443520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65112822000).

40836443520 is an abundant number, since it is smaller than the sum of its proper divisors (89389200480).

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

40836443520 is a wasteful number, since it uses less digits than its factorization.

40836443520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9740 (or 9728 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 40836443520 in words is "forty billion, eight hundred thirty-six million, four hundred forty-three thousand, five hundred twenty".