42305999 has 4 divisors (see below), whose sum is σ = 42495936. Its totient is φ = 42116064.

The previous prime is 42305987. The next prime is 42306029. The reversal of 42305999 is 99950324.

42305999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42305999 - 2¹⁶ = 42240463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42305959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94634 + ... + 95079.

It is an arithmetic number, because the mean of its divisors is an integer number (10623984).

Almost surely, 2^42305999 is an apocalyptic number.

42305999 is a deficient number, since it is larger than the sum of its proper divisors (189937).

42305999 is a wasteful number, since it uses less digits than its factorization.

42305999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189936.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 42305999 is about 6504.3061889797. The cubic root of 42305999 is about 348.4447977545. Note that the first 3 decimals are identical.

The spelling of 42305999 in words is "forty-two million, three hundred five thousand, nine hundred ninety-nine".