3240165820 has 24 divisors (see below), whose sum is σ = 6823638864. Its totient is φ = 1292391936.

The previous prime is 3240165751. The next prime is 3240165821. The reversal of 3240165820 is 285610423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240165821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222414 + ... + 236533.

It is an arithmetic number, because the mean of its divisors is an integer number (284318286).

Almost surely, 2^3240165820 is an apocalyptic number.

It is an amenable number.

3240165820 is an abundant number, since it is smaller than the sum of its proper divisors (3583473044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3240165820 is a wasteful number, since it uses less digits than its factorization.

3240165820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459309 (or 459307 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 3240165820 is about 56922.4544446214. The cubic root of 3240165820 is about 1479.7524878273.

The spelling of 3240165820 in words is "three billion, two hundred forty million, one hundred sixty-five thousand, eight hundred twenty".