40830785838 has 36 divisors (see below), whose sum is σ = 89806986360. Its totient is φ = 13407097176.

The previous prime is 40830785833. The next prime is 40830785839. The reversal of 40830785838 is 83858703804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40830785833) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 171858 + ... + 333461.

It is an arithmetic number, because the mean of its divisors is an integer number (2494638510).

Almost surely, 2^40830785838 is an apocalyptic number.

40830785838 is an abundant number, since it is smaller than the sum of its proper divisors (48976200522).

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

40830785838 is a wasteful number, since it uses less digits than its factorization.

40830785838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505461 (or 505391 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 40830785838 in words is "forty billion, eight hundred thirty million, seven hundred eighty-five thousand, eight hundred thirty-eight".