2420399197 has 2 divisors, whose sum is σ = 2420399198. Its totient is φ = 2420399196.

The previous prime is 2420399167. The next prime is 2420399203. The reversal of 2420399197 is 7919930242.

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., 1332323001 + 1088076196 = 36501^2 + 32986^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420399197 - 2¹⁹ = 2419874909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2420399117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210199598 + 1210199599.

It is an arithmetic number, because the mean of its divisors is an integer number (1210199599).

Almost surely, 2^2420399197 is an apocalyptic number.

It is an amenable number.

2420399197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420399197 is an equidigital number, since it uses as much as digits as its factorization.

2420399197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 2420399197 is about 49197.5527541767. The cubic root of 2420399197 is about 1342.6485074188.

The spelling of 2420399197 in words is "two billion, four hundred twenty million, three hundred ninety-nine thousand, one hundred ninety-seven".