338875218 has 32 divisors (see below), whose sum is σ = 821517120. Its totient is φ = 102689280.

The previous prime is 338875211. The next prime is 338875247. The reversal of 338875218 is 812578833.

It is a super-2 number, since 2×338875218² = 229672826749095048, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (338875211) 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 15 ways as a sum of consecutive naturals, for example, 284655 + ... + 285842.

It is an arithmetic number, because the mean of its divisors is an integer number (25672410).

Almost surely, 2^338875218 is an apocalyptic number.

338875218 is an abundant number, since it is smaller than the sum of its proper divisors (482641902).

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

338875218 is a wasteful number, since it uses less digits than its factorization.

338875218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570519 (or 570513 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 338875218 is about 18408.5637136633. The cubic root of 338875218 is about 697.1827022527.

It can be divided in two parts, 3388 and 75218, that added together give a triangular number (78606 = T₃₉₆).

The spelling of 338875218 in words is "three hundred thirty-eight million, eight hundred seventy-five thousand, two hundred eighteen".