338138481 has 8 divisors (see below), whose sum is σ = 457580704. Its totient is φ = 222060960.

The previous prime is 338138473. The next prime is 338138491. The reversal of 338138481 is 184831833.

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

It is not a de Polignac number, because 338138481 - 2³ = 338138473 is a prime.

It is a super-2 number, since 2×338138481² = 228675264665974722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338138441) 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, 840940 + ... + 841341.

It is an arithmetic number, because the mean of its divisors is an integer number (57197588).

Almost surely, 2^338138481 is an apocalyptic number.

It is an amenable number.

338138481 is a deficient number, since it is larger than the sum of its proper divisors (119442223).

338138481 is a wasteful number, since it uses less digits than its factorization.

338138481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682351.

The product of its digits is 55296, while the sum is 39.

The square root of 338138481 is about 18388.5421118696. The cubic root of 338138481 is about 696.6770953265.

The spelling of 338138481 in words is "three hundred thirty-eight million, one hundred thirty-eight thousand, four hundred eighty-one".