338818447 has 8 divisors (see below), whose sum is σ = 370276560. Its totient is φ = 307469760.

The previous prime is 338818411. The next prime is 338818471. The reversal of 338818447 is 744818833.

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 338818447 - 2¹¹ = 338816399 is a prime.

It is a super-2 number, since 2×338818447² = 229595880054983618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 338818397 and 338818406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338818247) 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, 20808 + ... + 33325.

It is an arithmetic number, because the mean of its divisors is an integer number (46284570).

Almost surely, 2^338818447 is an apocalyptic number.

338818447 is a deficient number, since it is larger than the sum of its proper divisors (31458113).

338818447 is a wasteful number, since it uses less digits than its factorization.

338818447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54713.

The product of its digits is 516096, while the sum is 46.

The square root of 338818447 is about 18407.0216765233. The cubic root of 338818447 is about 697.1437675972.

The spelling of 338818447 in words is "three hundred thirty-eight million, eight hundred eighteen thousand, four hundred forty-seven".