40535811 has 12 divisors (see below), whose sum is σ = 58614192. Its totient is φ = 26995056.

The previous prime is 40535809. The next prime is 40535813. The reversal of 40535811 is 11853504.

It is an interprime number because it is at equal distance from previous prime (40535809) and next prime (40535813).

It is not a de Polignac number, because 40535811 - 2¹ = 40535809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40535813) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9730 + ... + 13256.

It is an arithmetic number, because the mean of its divisors is an integer number (4884516).

Almost surely, 2^40535811 is an apocalyptic number.

40535811 is a deficient number, since it is larger than the sum of its proper divisors (18078381).

40535811 is a wasteful number, since it uses less digits than its factorization.

40535811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4810 (or 4807 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 40535811 is about 6366.7739868791. The cubic root of 40535811 is about 343.5154611247.

The spelling of 40535811 in words is "forty million, five hundred thirty-five thousand, eight hundred eleven".