40491935 has 16 divisors (see below), whose sum is σ = 53155872. Its totient is φ = 29366400.

The previous prime is 40491911. The next prime is 40491959. The reversal of 40491935 is 53919404.

It is an interprime number because it is at equal distance from previous prime (40491911) and next prime (40491959).

It is not a de Polignac number, because 40491935 - 2¹⁰ = 40490911 is a prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 40491895 and 40491904.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 24557 + ... + 26153.

It is an arithmetic number, because the mean of its divisors is an integer number (3322242).

Almost surely, 2^40491935 is an apocalyptic number.

40491935 is a deficient number, since it is larger than the sum of its proper divisors (12663937).

40491935 is a wasteful number, since it uses less digits than its factorization.

40491935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 40491935 is about 6363.3273528870. The cubic root of 40491935 is about 343.3914758938.

The spelling of 40491935 in words is "forty million, four hundred ninety-one thousand, nine hundred thirty-five".