42399858 has 8 divisors (see below), whose sum is σ = 84799728. Its totient is φ = 14133284.

The previous prime is 42399857. The next prime is 42399869. The reversal of 42399858 is 85899324.

42399858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

42399858 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (42399857) 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, 3533316 + ... + 3533327.

It is an arithmetic number, because the mean of its divisors is an integer number (10599966).

Almost surely, 2^42399858 is an apocalyptic number.

42399858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42399858 is a wasteful number, since it uses less digits than its factorization.

42399858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7066648.

The product of its digits is 622080, while the sum is 48.

The square root of 42399858 is about 6511.5173346924. The cubic root of 42399858 is about 348.7022909776.

The spelling of 42399858 in words is "forty-two million, three hundred ninety-nine thousand, eight hundred fifty-eight".