642462299 has 2 divisors, whose sum is σ = 642462300. Its totient is φ = 642462298.

The previous prime is 642462281. The next prime is 642462311. The reversal of 642462299 is 992264246.

642462299 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-642462299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (642462209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321231149 + 321231150.

It is an arithmetic number, because the mean of its divisors is an integer number (321231150).

Almost surely, 2^642462299 is an apocalyptic number.

642462299 is a deficient number, since it is larger than the sum of its proper divisors (1).

642462299 is an equidigital number, since it uses as much as digits as its factorization.

642462299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The square root of 642462299 is about 25346.8400200104. The cubic root of 642462299 is about 862.8776413627.

The spelling of 642462299 in words is "six hundred forty-two million, four hundred sixty-two thousand, two hundred ninety-nine".