40027006500 has 192 divisors, whose sum is σ = 125917838592. Its totient is φ = 9821952000.

The previous prime is 40027006471. The next prime is 40027006517. The reversal of 40027006500 is 560072004.

It is a happy number.

It is a super-2 number, since 2×40027006500² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6568455 + ... + 6574545.

It is an arithmetic number, because the mean of its divisors is an integer number (655822076).

Almost surely, 2^40027006500 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 40027006500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62958919296).

40027006500 is an abundant number, since it is smaller than the sum of its proper divisors (85890832092).

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

40027006500 is a wasteful number, since it uses less digits than its factorization.

40027006500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6463 (or 6451 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

Adding to 40027006500 its reverse (560072004), we get a palindrome (40587078504).

The spelling of 40027006500 in words is "forty billion, twenty-seven million, six thousand, five hundred".