4021420241 has 4 divisors (see below), whose sum is σ = 4021960500. Its totient is φ = 4020879984.

The previous prime is 4021420189. The next prime is 4021420279. The reversal of 4021420241 is 1420241204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2487914641 + 1533505600 = 49879^2 + 39160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021420241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021420841) 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, 258806 + ... + 273903.

It is an arithmetic number, because the mean of its divisors is an integer number (1005490125).

Almost surely, 2^4021420241 is an apocalyptic number.

It is an amenable number.

4021420241 is a deficient number, since it is larger than the sum of its proper divisors (540259).

4021420241 is an equidigital number, since it uses as much as digits as its factorization.

4021420241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540258.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 4021420241 is about 63414.6689733535. The cubic root of 4021420241 is about 1590.2295517895.

Adding to 4021420241 its reverse (1420241204), we get a palindrome (5441661445).

The spelling of 4021420241 in words is "four billion, twenty-one million, four hundred twenty thousand, two hundred forty-one".