355857842 has 6 divisors (see below), whose sum is σ = 533826783. Its totient is φ = 177915582.

The previous prime is 355857841. The next prime is 355857883. The reversal of 355857842 is 248758553.

355857842 is digitally balanced in base 3, 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 only one way, i.e., 177928921 + 177928921 = 13339^2 + 13339^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=13339.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355857841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20009 + ... + 33347.

Almost surely, 2^355857842 is an apocalyptic number.

355857842 is a deficient number, since it is larger than the sum of its proper divisors (177968941).

355857842 is an frugal number, since it uses more digits than its factorization.

355857842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26680 (or 13341 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 47.

The square root of 355857842 is about 18864.1947084947. The cubic root of 355857842 is about 708.6397563028.

The spelling of 355857842 in words is "three hundred fifty-five million, eight hundred fifty-seven thousand, eight hundred forty-two".