42398099 has 4 divisors (see below), whose sum is σ = 42682800. Its totient is φ = 42113400.

The previous prime is 42398077. The next prime is 42398107. The reversal of 42398099 is 99089324.

42398099 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 42398099 - 2⁸ = 42397843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42098099) 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, 142127 + ... + 142424.

It is an arithmetic number, because the mean of its divisors is an integer number (10670700).

Almost surely, 2^42398099 is an apocalyptic number.

42398099 is a deficient number, since it is larger than the sum of its proper divisors (284701).

42398099 is a wasteful number, since it uses less digits than its factorization.

42398099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284700.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 42398099 is about 6511.3822649265. The cubic root of 42398099 is about 348.6974688245.

The spelling of 42398099 in words is "forty-two million, three hundred ninety-eight thousand, ninety-nine".