2420016881 has 2 divisors, whose sum is σ = 2420016882. Its totient is φ = 2420016880.

The previous prime is 2420016839. The next prime is 2420016899. The reversal of 2420016881 is 1886100242.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1752259600 + 667757281 = 41860^2 + 25841^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420016881 - 2¹⁸ = 2419754737 is a prime.

It is a super-2 number, since 2×2420016881² = 11712963408649936322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2420016481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210008440 + 1210008441.

It is an arithmetic number, because the mean of its divisors is an integer number (1210008441).

Almost surely, 2^2420016881 is an apocalyptic number.

It is an amenable number.

2420016881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420016881 is an equidigital number, since it uses as much as digits as its factorization.

2420016881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 2420016881 is about 49193.6670822577. The cubic root of 2420016881 is about 1342.5778106736.

The spelling of 2420016881 in words is "two billion, four hundred twenty million, sixteen thousand, eight hundred eighty-one".