3240641 has 4 divisors (see below), whose sum is σ = 3244800. Its totient is φ = 3236484.

The previous prime is 3240619. The next prime is 3240649. The reversal of 3240641 is 1460423.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3240641 - 2⁶ = 3240577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3240649) 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, 521 + ... + 2598.

It is an arithmetic number, because the mean of its divisors is an integer number (811200).

Almost surely, 2^3240641 is an apocalyptic number.

It is an amenable number.

3240641 is a deficient number, since it is larger than the sum of its proper divisors (4159).

3240641 is a wasteful number, since it uses less digits than its factorization.

3240641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3240641 is about 1800.1780467498. The cubic root of 3240641 is about 147.9824821000.

The spelling of 3240641 in words is "three million, two hundred forty thousand, six hundred forty-one".