40435109 has 12 divisors (see below), whose sum is σ = 47767392. Its totient is φ = 33930000.

The previous prime is 40435079. The next prime is 40435133. The reversal of 40435109 is 90153404.

It is not a de Polignac number, because 40435109 - 2¹⁶ = 40369573 is a prime.

It is a super-3 number, since 3×40435109³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40435169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9017 + ... + 12734.

It is an arithmetic number, because the mean of its divisors is an integer number (3980616).

Almost surely, 2^40435109 is an apocalyptic number.

It is an amenable number.

40435109 is a deficient number, since it is larger than the sum of its proper divisors (7332283).

40435109 is a wasteful number, since it uses less digits than its factorization.

40435109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21788 (or 21775 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 40435109 is about 6358.8606683902. The cubic root of 40435109 is about 343.2307632357.

The spelling of 40435109 in words is "forty million, four hundred thirty-five thousand, one hundred nine".