338395918 has 32 divisors (see below), whose sum is σ = 608486400. Its totient is φ = 137998080.

The previous prime is 338395903. The next prime is 338395921. The reversal of 338395918 is 819593833.

It is a super-2 number, since 2×338395918² = 229023594638125448, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61438 + ... + 66718.

It is an arithmetic number, because the mean of its divisors is an integer number (19015200).

Almost surely, 2^338395918 is an apocalyptic number.

338395918 is a deficient number, since it is larger than the sum of its proper divisors (270090482).

338395918 is a wasteful number, since it uses less digits than its factorization.

338395918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5512.

The product of its digits is 699840, while the sum is 49.

The square root of 338395918 is about 18395.5407096394. The cubic root of 338395918 is about 696.8538522623.

The spelling of 338395918 in words is "three hundred thirty-eight million, three hundred ninety-five thousand, nine hundred eighteen".