3240402 has 32 divisors (see below), whose sum is σ = 7318080. Its totient is φ = 947520.

The previous prime is 3240389. The next prime is 3240407. The reversal of 3240402 is 2040423.

It is a happy number.

3240402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3240407) 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 15 ways as a sum of consecutive naturals, for example, 1068 + ... + 2760.

It is an arithmetic number, because the mean of its divisors is an integer number (228690).

Almost surely, 2^3240402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3240402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3659040).

3240402 is an abundant number, since it is smaller than the sum of its proper divisors (4077678).

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

3240402 is a wasteful number, since it uses less digits than its factorization.

3240402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738.

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

The square root of 3240402 is about 1800.1116632031. Note that the first 3 decimals coincide. The cubic root of 3240402 is about 147.9788440663.

Adding to 3240402 its reverse (2040423), we get a palindrome (5280825).

The spelling of 3240402 in words is "three million, two hundred forty thousand, four hundred two".