40043115120 has 160 divisors (see below), whose sum is σ = 131572918080. Its totient is φ = 10039541760.

The previous prime is 40043115083. The next prime is 40043115149. The reversal of 40043115120 is 2151134004.

It is a super-2 number, since 2×40043115120² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4356930 + ... + 4366110.

It is an arithmetic number, because the mean of its divisors is an integer number (822330738).

Almost surely, 2^40043115120 is an apocalyptic number.

40043115120 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 40043115120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65786459040).

40043115120 is an abundant number, since it is smaller than the sum of its proper divisors (91529802960).

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

40043115120 is a wasteful number, since it uses less digits than its factorization.

40043115120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10283 (or 10277 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 40043115120 its reverse (2151134004), we get a palindrome (42194249124).

The spelling of 40043115120 in words is "forty billion, forty-three million, one hundred fifteen thousand, one hundred twenty".