42722299 has 2 divisors, whose sum is σ = 42722300. Its totient is φ = 42722298.

The previous prime is 42722297. The next prime is 42722321. The reversal of 42722299 is 99222724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42722299 - 2¹ = 42722297 is a prime.

Together with 42722297, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42722291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21361149 + 21361150.

It is an arithmetic number, because the mean of its divisors is an integer number (21361150).

Almost surely, 2^42722299 is an apocalyptic number.

42722299 is a deficient number, since it is larger than the sum of its proper divisors (1).

42722299 is an equidigital number, since it uses as much as digits as its factorization.

42722299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 42722299 is about 6536.2297236251. The cubic root of 42722299 is about 349.5839928079.

The spelling of 42722299 in words is "forty-two million, seven hundred twenty-two thousand, two hundred ninety-nine".