42022999 has 2 divisors, whose sum is σ = 42023000. Its totient is φ = 42022998.

The previous prime is 42022987. The next prime is 42023039. The reversal of 42022999 is 99922024.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42022999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42022979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21011499 + 21011500.

It is an arithmetic number, because the mean of its divisors is an integer number (21011500).

Almost surely, 2^42022999 is an apocalyptic number.

42022999 is a deficient number, since it is larger than the sum of its proper divisors (1).

42022999 is an equidigital number, since it uses as much as digits as its factorization.

42022999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 42022999 is about 6482.5148669324. The cubic root of 42022999 is about 347.6661014321. Note that the first 3 decimals are identical.

The spelling of 42022999 in words is "forty-two million, twenty-two thousand, nine hundred ninety-nine".