338405018 has 8 divisors (see below), whose sum is σ = 580122912. Its totient is φ = 145030716.

The previous prime is 338404981. The next prime is 338405051. The reversal of 338405018 is 810504833.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×338405018² = 229035912415160648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12085880 + ... + 12085907.

It is an arithmetic number, because the mean of its divisors is an integer number (72515364).

Almost surely, 2^338405018 is an apocalyptic number.

338405018 is a deficient number, since it is larger than the sum of its proper divisors (241717894).

338405018 is a wasteful number, since it uses less digits than its factorization.

338405018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24171796.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 338405018 is about 18395.7880505294. The cubic root of 338405018 is about 696.8600987061.

The spelling of 338405018 in words is "three hundred thirty-eight million, four hundred five thousand, eighteen".