2420644427 has 2 divisors, whose sum is σ = 2420644428. Its totient is φ = 2420644426.

The previous prime is 2420644411. The next prime is 2420644439. The reversal of 2420644427 is 7244460242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2420644427 - 2⁴ = 2420644411 is a prime.

It is not a weakly prime, because it can be changed into another prime (2420644487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210322213 + 1210322214.

It is an arithmetic number, because the mean of its divisors is an integer number (1210322214).

Almost surely, 2^2420644427 is an apocalyptic number.

2420644427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420644427 is an equidigital number, since it uses as much as digits as its factorization.

2420644427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 35.

The square root of 2420644427 is about 49200.0449898168. The cubic root of 2420644427 is about 1342.6938507069.

The spelling of 2420644427 in words is "two billion, four hundred twenty million, six hundred forty-four thousand, four hundred twenty-seven".