3236640109 has 4 divisors (see below), whose sum is σ = 3377363616. Its totient is φ = 3095916604.

The previous prime is 3236640107. The next prime is 3236640119. The reversal of 3236640109 is 9010466323.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3236640109 - 2¹ = 3236640107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3236640103) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 70361719 + ... + 70361764.

It is an arithmetic number, because the mean of its divisors is an integer number (844340904).

Almost surely, 2^3236640109 is an apocalyptic number.

It is an amenable number.

3236640109 is a deficient number, since it is larger than the sum of its proper divisors (140723507).

3236640109 is a wasteful number, since it uses less digits than its factorization.

3236640109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140723506.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 3236640109 is about 56891.4765935988. The cubic root of 3236640109 is about 1479.2155736305.

The spelling of 3236640109 in words is "three billion, two hundred thirty-six million, six hundred forty thousand, one hundred nine".