338612013 has 6 divisors (see below), whose sum is σ = 489106254. Its totient is φ = 225741336.

The previous prime is 338611991. The next prime is 338612023. The reversal of 338612013 is 310216833.

It is a happy number.

338612013 is a `hidden beast` number, since 3 + 38 + 612 + 0 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 321198084 + 17413929 = 17922^2 + 4173^2 .

It is not a de Polignac number, because 338612013 - 2¹⁴ = 338595629 is a prime.

It is a super-2 number, since 2×338612013² = 229316190695824338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338612023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18811770 + ... + 18811787.

It is an arithmetic number, because the mean of its divisors is an integer number (81517709).

Almost surely, 2^338612013 is an apocalyptic number.

It is an amenable number.

338612013 is a deficient number, since it is larger than the sum of its proper divisors (150494241).

338612013 is a wasteful number, since it uses less digits than its factorization.

338612013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37623563 (or 37623560 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 338612013 is about 18401.4133424582. The cubic root of 338612013 is about 697.0021544752.

Adding to 338612013 its reverse (310216833), we get a palindrome (648828846).

The spelling of 338612013 in words is "three hundred thirty-eight million, six hundred twelve thousand, thirteen".