3240141021 has 20 divisors (see below), whose sum is σ = 5212536252. Its totient is φ = 1993932288.

The previous prime is 3240141017. The next prime is 3240141067. The reversal of 3240141021 is 1201410423.

It can be written as a sum of positive squares in 2 ways, for example, as 1710236025 + 1529904996 = 41355^2 + 39114^2 .

It is not a de Polignac number, because 3240141021 - 2² = 3240141017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3240140985 and 3240141003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240141001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1537476 + ... + 1539581.

Almost surely, 2^3240141021 is an apocalyptic number.

It is an amenable number.

3240141021 is a deficient number, since it is larger than the sum of its proper divisors (1972395231).

3240141021 is a wasteful number, since it uses less digits than its factorization.

3240141021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077082 (or 3077073 counting only the distinct ones).

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

The square root of 3240141021 is about 56922.2366127685. The cubic root of 3240141021 is about 1479.7487126629.

Adding to 3240141021 its reverse (1201410423), we get a palindrome (4441551444).

The spelling of 3240141021 in words is "three billion, two hundred forty million, one hundred forty-one thousand, twenty-one".