42299899 has 2 divisors, whose sum is σ = 42299900. Its totient is φ = 42299898.

The previous prime is 42299897. The next prime is 42299941. The reversal of 42299899 is 99899224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42299899 - 2¹ = 42299897 is a prime.

Together with 42299897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42299891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21149949 + 21149950.

It is an arithmetic number, because the mean of its divisors is an integer number (21149950).

Almost surely, 2^42299899 is an apocalyptic number.

42299899 is a deficient number, since it is larger than the sum of its proper divisors (1).

42299899 is an equidigital number, since it uses as much as digits as its factorization.

42299899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 52.

The square root of 42299899 is about 6503.8372519613. The cubic root of 42299899 is about 348.4280498111.

The spelling of 42299899 in words is "forty-two million, two hundred ninety-nine thousand, eight hundred ninety-nine".