40439607936 has 512 divisors, whose sum is σ = 136342241280. Its totient is φ = 10338140160.

The previous prime is 40439607877. The next prime is 40439607991. The reversal of 40439607936 is 63970693404.

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, 211725601 + ... + 211725791.

It is an arithmetic number, because the mean of its divisors is an integer number (266293440).

Almost surely, 2^40439607936 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 40439607936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68171120640).

40439607936 is an abundant number, since it is smaller than the sum of its proper divisors (95902633344).

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

40439607936 is a wasteful number, since it uses less digits than its factorization.

40439607936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 51.

The spelling of 40439607936 in words is "forty billion, four hundred thirty-nine million, six hundred seven thousand, nine hundred thirty-six".