2420380447 has 2 divisors, whose sum is σ = 2420380448. Its totient is φ = 2420380446.

The previous prime is 2420380439. The next prime is 2420380471. The reversal of 2420380447 is 7440830242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2420380447 - 2³ = 2420380439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2420380247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210190223 + 1210190224.

It is an arithmetic number, because the mean of its divisors is an integer number (1210190224).

Almost surely, 2^2420380447 is an apocalyptic number.

2420380447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420380447 is an equidigital number, since it uses as much as digits as its factorization.

2420380447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 34.

The square root of 2420380447 is about 49197.3621955487. The cubic root of 2420380447 is about 1342.6450403978.

The spelling of 2420380447 in words is "two billion, four hundred twenty million, three hundred eighty thousand, four hundred forty-seven".