42818258 has 18 divisors (see below), whose sum is σ = 74826693. Its totient is φ = 18322920.

The previous prime is 42818231. The next prime is 42818263. The reversal of 42818258 is 85281824.

42818258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38725729 + 4092529 = 6223^2 + 2023^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=4627.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 64448 + ... + 65108.

Almost surely, 2^42818258 is an apocalyptic number.

42818258 is a deficient number, since it is larger than the sum of its proper divisors (32008435).

42818258 is an frugal number, since it uses more digits than its factorization.

42818258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338 (or 670 counting only the distinct ones).

The product of its digits is 40960, while the sum is 38.

The square root of 42818258 is about 6543.5661531003. The cubic root of 42818258 is about 349.8455318374.

The spelling of 42818258 in words is "forty-two million, eight hundred eighteen thousand, two hundred fifty-eight".