40535859 has 16 divisors (see below), whose sum is σ = 66520832. Its totient is φ = 21381408.

The previous prime is 40535849. The next prime is 40535863. The reversal of 40535859 is 95853504.

40535859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40535859 - 2⁷ = 40535731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (40535809) 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 15 ways as a sum of consecutive naturals, for example, 73969 + ... + 74514.

It is an arithmetic number, because the mean of its divisors is an integer number (4157552).

Almost surely, 2^40535859 is an apocalyptic number.

40535859 is a deficient number, since it is larger than the sum of its proper divisors (25984973).

40535859 is a wasteful number, since it uses less digits than its factorization.

40535859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148506.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 40535859 is about 6366.7777564479. Note that the first 4 decimals coincide. The cubic root of 40535859 is about 343.5155967145.

The spelling of 40535859 in words is "forty million, five hundred thirty-five thousand, eight hundred fifty-nine".