338616381 has 8 divisors (see below), whose sum is σ = 454192704. Its totient is φ = 224392160.

The previous prime is 338616349. The next prime is 338616391. The reversal of 338616381 is 183616833.

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

It is a cyclic number.

It is not a de Polignac number, because 338616381 - 2⁵ = 338616349 is a prime.

It is a super-2 number, since 2×338616381² = 229322106963074322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338616301) 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, 337440 + ... + 338441.

It is an arithmetic number, because the mean of its divisors is an integer number (56774088).

Almost surely, 2^338616381 is an apocalyptic number.

It is an amenable number.

338616381 is a deficient number, since it is larger than the sum of its proper divisors (115576323).

338616381 is a wasteful number, since it uses less digits than its factorization.

338616381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676051.

The product of its digits is 62208, while the sum is 39.

The square root of 338616381 is about 18401.5320286111. The cubic root of 338616381 is about 697.0051515064.

The spelling of 338616381 in words is "three hundred thirty-eight million, six hundred sixteen thousand, three hundred eighty-one".