2420640073 has 2 divisors, whose sum is σ = 2420640074. Its totient is φ = 2420640072.

The previous prime is 2420639987. The next prime is 2420640077. The reversal of 2420640073 is 3700460242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1259398144 + 1161241929 = 35488^2 + 34077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2420640073 is a prime.

It is not a weakly prime, because it can be changed into another prime (2420640077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210320036 + 1210320037.

It is an arithmetic number, because the mean of its divisors is an integer number (1210320037).

Almost surely, 2^2420640073 is an apocalyptic number.

It is an amenable number.

2420640073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420640073 is an equidigital number, since it uses as much as digits as its factorization.

2420640073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 2420640073 is about 49200.0007418699. Note that the first 3 decimals coincide. The cubic root of 2420640073 is about 1342.6930456744.

The spelling of 2420640073 in words is "two billion, four hundred twenty million, six hundred forty thousand, seventy-three".