40871720040 has 64 divisors (see below), whose sum is σ = 129068596800. Its totient is φ = 10325486592.

The previous prime is 40871720023. The next prime is 40871720069. The reversal of 40871720040 is 4002717804.

It is a junction number, because it is equal to n+sod(n) for n = 40871719983 and 40871720010.

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, 8960817 + ... + 8965376.

It is an arithmetic number, because the mean of its divisors is an integer number (2016696825).

Almost surely, 2^40871720040 is an apocalyptic number.

40871720040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40871720040 is an abundant number, since it is smaller than the sum of its proper divisors (88196876760).

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

40871720040 is a wasteful number, since it uses less digits than its factorization.

40871720040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17926226 (or 17926222 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The spelling of 40871720040 in words is "forty billion, eight hundred seventy-one million, seven hundred twenty thousand, forty".