40853917 has 8 divisors (see below), whose sum is σ = 45070200. Its totient is φ = 36791040.

The previous prime is 40853861. The next prime is 40853921. The reversal of 40853917 is 71935804.

It can be written as a sum of positive squares in 4 ways, for example, as 1490841 + 39363076 = 1221^2 + 6274^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-40853917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40853927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37792 + ... + 38857.

It is an arithmetic number, because the mean of its divisors is an integer number (5633775).

Almost surely, 2^40853917 is an apocalyptic number.

It is an amenable number.

40853917 is a deficient number, since it is larger than the sum of its proper divisors (4216283).

40853917 is a wasteful number, since it uses less digits than its factorization.

40853917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76703.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 40853917 is about 6391.7068925288. The cubic root of 40853917 is about 344.4117034166.

The spelling of 40853917 in words is "forty million, eight hundred fifty-three thousand, nine hundred seventeen".