40235859 has 20 divisors (see below), whose sum is σ = 60333504. Its totient is φ = 26722224.

The previous prime is 40235849. The next prime is 40235873. The reversal of 40235859 is 95853204.

It is not a de Polignac number, because 40235859 - 2¹⁵ = 40203091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40235849) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24894 + ... + 26460.

Almost surely, 2^40235859 is an apocalyptic number.

40235859 is a deficient number, since it is larger than the sum of its proper divisors (20097645).

40235859 is a wasteful number, since it uses less digits than its factorization.

40235859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896 (or 1887 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 40235859 is about 6343.1742053959. The cubic root of 40235859 is about 342.6660611598. Note that the first 3 decimals are identical.

The spelling of 40235859 in words is "forty million, two hundred thirty-five thousand, eight hundred fifty-nine".