2420561389 has 2 divisors, whose sum is σ = 2420561390. Its totient is φ = 2420561388.

The previous prime is 2420561369. The next prime is 2420561393. The reversal of 2420561389 is 9831650242.

2420561389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2215584900 + 204976489 = 47070^2 + 14317^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420561389 - 2¹³ = 2420553197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2420561359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210280694 + 1210280695.

It is an arithmetic number, because the mean of its divisors is an integer number (1210280695).

Almost surely, 2^2420561389 is an apocalyptic number.

It is an amenable number.

2420561389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420561389 is an equidigital number, since it uses as much as digits as its factorization.

2420561389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 2420561389 is about 49199.2011012374. The cubic root of 2420561389 is about 1342.6784972352.

The spelling of 2420561389 in words is "two billion, four hundred twenty million, five hundred sixty-one thousand, three hundred eighty-nine".