338385887 has 4 divisors (see below), whose sum is σ = 386726736. Its totient is φ = 290045040.

The previous prime is 338385871. The next prime is 338385889. The reversal of 338385887 is 788583833.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 338385887 - 2⁴ = 338385871 is a prime.

It is a super-2 number, since 2×338385887² = 229010017041553538, 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 (338385889) 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, 24170414 + ... + 24170427.

It is an arithmetic number, because the mean of its divisors is an integer number (96681684).

Almost surely, 2^338385887 is an apocalyptic number.

338385887 is a deficient number, since it is larger than the sum of its proper divisors (48340849).

338385887 is an equidigital number, since it uses as much as digits as its factorization.

338385887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48340848.

The product of its digits is 3870720, while the sum is 53.

The square root of 338385887 is about 18395.2680600202. The cubic root of 338385887 is about 696.8469666296.

The spelling of 338385887 in words is "three hundred thirty-eight million, three hundred eighty-five thousand, eight hundred eighty-seven".