40663907340 has 144 divisors (see below), whose sum is σ = 133077901824. Its totient is φ = 9250416000.

The previous prime is 40663907311. The next prime is 40663907423. The reversal of 40663907340 is 4370936604.

It is a super-2 number, since 2×40663907340² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 40663907292 and 40663907301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 587565 + ... + 653115.

It is an arithmetic number, because the mean of its divisors is an integer number (924152096).

Almost surely, 2^40663907340 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 40663907340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66538950912).

40663907340 is an abundant number, since it is smaller than the sum of its proper divisors (92413994484).

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

40663907340 is a wasteful number, since it uses less digits than its factorization.

40663907340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65788 (or 65779 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 42.

The spelling of 40663907340 in words is "forty billion, six hundred sixty-three million, nine hundred seven thousand, three hundred forty".