338670407 has 4 divisors (see below), whose sum is σ = 339236400. Its totient is φ = 338104416.

The previous prime is 338670389. The next prime is 338670457. The reversal of 338670407 is 704076833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704076833 = 3917 ⋅179749.

It is a cyclic number.

It is not a de Polignac number, because 338670407 - 2⁸ = 338670151 is a prime.

It is a super-2 number, since 2×338670407² = 229395289155091298, 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 (338670457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282098 + ... + 283295.

It is an arithmetic number, because the mean of its divisors is an integer number (84809100).

Almost surely, 2^338670407 is an apocalyptic number.

338670407 is a deficient number, since it is larger than the sum of its proper divisors (565993).

338670407 is an equidigital number, since it uses as much as digits as its factorization.

338670407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565992.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 338670407 is about 18402.9999456610. Note that the first 4 decimals coincide. The cubic root of 338670407 is about 697.0422184253.

The spelling of 338670407 in words is "three hundred thirty-eight million, six hundred seventy thousand, four hundred seven".