40938785 has 4 divisors (see below), whose sum is σ = 49126548. Its totient is φ = 32751024.

The previous prime is 40938773. The next prime is 40938791. The reversal of 40938785 is 58783904.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9388096 + 31550689 = 3064^2 + 5617^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40938785 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4093874 + ... + 4093883.

It is an arithmetic number, because the mean of its divisors is an integer number (12281637).

Almost surely, 2^40938785 is an apocalyptic number.

It is an amenable number.

40938785 is a deficient number, since it is larger than the sum of its proper divisors (8187763).

40938785 is an equidigital number, since it uses as much as digits as its factorization.

40938785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8187762.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 40938785 is about 6398.3423634563. The cubic root of 40938785 is about 344.6500266742.

The spelling of 40938785 in words is "forty million, nine hundred thirty-eight thousand, seven hundred eighty-five".