40685093 has 4 divisors (see below), whose sum is σ = 40699788. Its totient is φ = 40670400.

The previous prime is 40685083. The next prime is 40685129. The reversal of 40685093 is 39058604.

40685093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11276164 + 29408929 = 3358^2 + 5423^2 .

It is a cyclic number.

It is not a de Polignac number, because 40685093 - 2⁴ = 40685077 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 (40685003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1796 + ... + 9197.

It is an arithmetic number, because the mean of its divisors is an integer number (10174947).

Almost surely, 2^40685093 is an apocalyptic number.

It is an amenable number.

40685093 is a deficient number, since it is larger than the sum of its proper divisors (14695).

40685093 is a wasteful number, since it uses less digits than its factorization.

40685093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14694.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 40685093 is about 6378.4867327604. The cubic root of 40685093 is about 343.9366348269.

The spelling of 40685093 in words is "forty million, six hundred eighty-five thousand, ninety-three".