40140543104 has 64 divisors (see below), whose sum is σ = 80921218560. Its totient is φ = 19831578624.

The previous prime is 40140543103. The next prime is 40140543137. The reversal of 40140543104 is 40134504104.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×40140543104² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40140543103) 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, 9024209 + ... + 9028655.

It is an arithmetic number, because the mean of its divisors is an integer number (1264394040).

Almost surely, 2^40140543104 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 40140543104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40460609280).

40140543104 is an abundant number, since it is smaller than the sum of its proper divisors (40780675456).

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

40140543104 is an equidigital number, since it uses as much as digits as its factorization.

40140543104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285 (or 5273 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The spelling of 40140543104 in words is "forty billion, one hundred forty million, five hundred forty-three thousand, one hundred four".