3240445 has 8 divisors (see below), whose sum is σ = 4187736. Its totient is φ = 2392896.

The previous prime is 3240409. The next prime is 3240449. The reversal of 3240445 is 5440423.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11236 + 3229209 = 106^2 + 1797^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3240445 - 2¹¹ = 3238397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24862 + ... + 24991.

It is an arithmetic number, because the mean of its divisors is an integer number (523467).

Almost surely, 2^3240445 is an apocalyptic number.

It is an amenable number.

3240445 is a deficient number, since it is larger than the sum of its proper divisors (947291).

3240445 is a wasteful number, since it uses less digits than its factorization.

3240445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49871.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 3240445 is about 1800.1236068670. The cubic root of 3240445 is about 147.9794986211.

Subtracting from 3240445 its sum of digits (22), we obtain a palindrome (3240423).

Adding to 3240445 its reverse (5440423), we get a palindrome (8680868).

The spelling of 3240445 in words is "three million, two hundred forty thousand, four hundred forty-five".