3240813 has 4 divisors (see below), whose sum is σ = 4321088. Its totient is φ = 2160540.

The previous prime is 3240767. The next prime is 3240841. The reversal of 3240813 is 3180423.

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 not a de Polignac number, because 3240813 - 2²¹ = 1143661 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3240813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240113) 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 3 ways as a sum of consecutive naturals, for example, 540133 + ... + 540138.

It is an arithmetic number, because the mean of its divisors is an integer number (1080272).

Almost surely, 2^3240813 is an apocalyptic number.

It is an amenable number.

3240813 is a deficient number, since it is larger than the sum of its proper divisors (1080275).

3240813 is a wasteful number, since it uses less digits than its factorization.

3240813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080274.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 3240813 is about 1800.2258191683. The cubic root of 3240813 is about 147.9851001557.

The spelling of 3240813 in words is "three million, two hundred forty thousand, eight hundred thirteen".