338643874 has 8 divisors (see below), whose sum is σ = 508470300. Its totient is φ = 169153776.

The previous prime is 338643863. The next prime is 338643889. The reversal of 338643874 is 478346833.

It can be written as a sum of positive squares in 2 ways, for example, as 198387225 + 140256649 = 14085^2 + 11843^2 .

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

It is a super-2 number, since 2×338643874² = 229359346795455752, 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, 81549 + ... + 85600.

Almost surely, 2^338643874 is an apocalyptic number.

338643874 is a deficient number, since it is larger than the sum of its proper divisors (169826426).

338643874 is a wasteful number, since it uses less digits than its factorization.

338643874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168164.

The product of its digits is 1161216, while the sum is 46.

The square root of 338643874 is about 18402.2790436402. The cubic root of 338643874 is about 697.0240147836.

The spelling of 338643874 in words is "three hundred thirty-eight million, six hundred forty-three thousand, eight hundred seventy-four".