3240621 has 16 divisors (see below), whose sum is σ = 5054400. Its totient is φ = 2046384.

The previous prime is 3240619. The next prime is 3240649. The reversal of 3240621 is 1260423.

It is a happy number.

3240621 is a `hidden beast` number, since 3 + 2 + 40 + 621 = 666.

It is not a de Polignac number, because 3240621 - 2¹ = 3240619 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3240594 and 3240603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3244621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2646 + ... + 3671.

It is an arithmetic number, because the mean of its divisors is an integer number (315900).

Almost surely, 2^3240621 is an apocalyptic number.

It is an amenable number.

3240621 is a deficient number, since it is larger than the sum of its proper divisors (1813779).

3240621 is a wasteful number, since it uses less digits than its factorization.

3240621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6345 (or 6339 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3240621 is about 1800.1724917352. The cubic root of 3240621 is about 147.9821776689.

The spelling of 3240621 in words is "three million, two hundred forty thousand, six hundred twenty-one".