3243040 has 24 divisors (see below), whose sum is σ = 7662060. Its totient is φ = 1297152.

The previous prime is 3243007. The next prime is 3243043. The reversal of 3243040 is 403423.

It can be written as a sum of positive squares in 2 ways, for example, as 3225616 + 17424 = 1796^2 + 132^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (3243043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9975 + ... + 10294.

Almost surely, 2^3243040 is an apocalyptic number.

It is an amenable number.

3243040 is an abundant number, since it is smaller than the sum of its proper divisors (4419020).

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

3243040 is a wasteful number, since it uses less digits than its factorization.

3243040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20284 (or 20276 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 3243040 is about 1800.8442464578. The cubic root of 3243040 is about 148.0189895283.

Adding to 3243040 its reverse (403423), we get a palindrome (3646463).

It can be divided in two parts, 324 and 3040, that added together give a square (3364 = 58²).

The spelling of 3243040 in words is "three million, two hundred forty-three thousand, forty".