338685387 has 8 divisors (see below), whose sum is σ = 454191504. Its totient is φ = 224484768.

The previous prime is 338685377. The next prime is 338685433. The reversal of 338685387 is 783586833.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-338685387 is a prime.

It is a super-2 number, since 2×338685387² = 229415582734679538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338685307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325768 + ... + 326805.

It is an arithmetic number, because the mean of its divisors is an integer number (56773938).

Almost surely, 2^338685387 is an apocalyptic number.

338685387 is a deficient number, since it is larger than the sum of its proper divisors (115506117).

338685387 is a wasteful number, since it uses less digits than its factorization.

338685387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652749.

The product of its digits is 2903040, while the sum is 51.

The square root of 338685387 is about 18403.4069400206. The cubic root of 338685387 is about 697.0524954166.

The spelling of 338685387 in words is "three hundred thirty-eight million, six hundred eighty-five thousand, three hundred eighty-seven".