40685783600 has 240 divisors, whose sum is σ = 122220748800. Its totient is φ = 12644505600.

The previous prime is 40685783597. The next prime is 40685783657. The reversal of 40685783600 is 638758604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11794676 + ... + 11798124.

It is an arithmetic number, because the mean of its divisors is an integer number (509253120).

Almost surely, 2^40685783600 is an apocalyptic number.

40685783600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40685783600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61110374400).

40685783600 is an abundant number, since it is smaller than the sum of its proper divisors (81534965200).

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

40685783600 is a wasteful number, since it uses less digits than its factorization.

40685783600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3868 (or 3857 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 40685783600 in words is "forty billion, six hundred eighty-five million, seven hundred eighty-three thousand, six hundred".