338345855 has 4 divisors (see below), whose sum is σ = 406015032. Its totient is φ = 270676680.

The previous prime is 338345837. The next prime is 338345857. The reversal of 338345855 is 558543833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 558543833 = 31 ⋅18017543.

It is a de Polignac number, because none of the positive numbers 2^k-338345855 is a prime.

It is a super-2 number, since 2×338345855² = 228955835191362050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338345857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33834581 + ... + 33834590.

It is an arithmetic number, because the mean of its divisors is an integer number (101503758).

Almost surely, 2^338345855 is an apocalyptic number.

338345855 is a deficient number, since it is larger than the sum of its proper divisors (67669177).

338345855 is an equidigital number, since it uses as much as digits as its factorization.

338345855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67669176.

The product of its digits is 864000, while the sum is 44.

The square root of 338345855 is about 18394.1799219210. The cubic root of 338345855 is about 696.8194858953.

The spelling of 338345855 in words is "three hundred thirty-eight million, three hundred forty-five thousand, eight hundred fifty-five".