3240081 has 40 divisors (see below), whose sum is σ = 5549544. Its totient is φ = 1866240.

The previous prime is 3240073. The next prime is 3240101. The reversal of 3240081 is 1800423.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 81 + 3240000 = 9^2 + 1800^2 .

It is not a de Polignac number, because 3240081 - 2³ = 3240073 is a prime.

It is a super-2 number, since 2×3240081² = 20996249773122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17811 + ... + 17991.

Almost surely, 2^3240081 is an apocalyptic number.

It is an amenable number.

3240081 is a deficient number, since it is larger than the sum of its proper divisors (2309463).

3240081 is a wasteful number, since it uses less digits than its factorization.

3240081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 3240081 is about 1800.0224998594. The cubic root of 3240081 is about 147.9739575556.

It can be divided in two parts, 32400 and 81, that multiplied together give a square (2624400 = 1620²).

The spelling of 3240081 in words is "three million, two hundred forty thousand, eighty-one".