3240420 has 48 divisors (see below), whose sum is σ = 9253440. Its totient is φ = 846976.

The previous prime is 3240409. The next prime is 3240449. The reversal of 3240420 is 240423.

It is a happy number.

3240420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 3240420.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2671 + ... + 3689.

It is an arithmetic number, because the mean of its divisors is an integer number (192780).

Almost surely, 2^3240420 is an apocalyptic number.

3240420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3240420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4626720).

3240420 is an abundant number, since it is smaller than the sum of its proper divisors (6013020).

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

3240420 is a wasteful number, since it uses less digits than its factorization.

3240420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 3240420 is about 1800.1166628860. The cubic root of 3240420 is about 147.9791180667.

Adding to 3240420 its reverse (240423), we get a palindrome (3480843).

The spelling of 3240420 in words is "three million, two hundred forty thousand, four hundred twenty".