338591393 has 16 divisors (see below), whose sum is σ = 404520960. Its totient is φ = 277290000.

The previous prime is 338591369. The next prime is 338591413. The reversal of 338591393 is 393195833.

It is not a de Polignac number, because 338591393 - 2¹⁶ = 338525857 is a prime.

It is a super-2 number, since 2×338591393² = 229288262827360898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338591353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7268 + ... + 27018.

It is an arithmetic number, because the mean of its divisors is an integer number (25282560).

Almost surely, 2^338591393 is an apocalyptic number.

It is an amenable number.

338591393 is a deficient number, since it is larger than the sum of its proper divisors (65929567).

338591393 is a wasteful number, since it uses less digits than its factorization.

338591393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19868.

The product of its digits is 262440, while the sum is 44.

The square root of 338591393 is about 18400.8530508778. The cubic root of 338591393 is about 696.9880060540.

The spelling of 338591393 in words is "three hundred thirty-eight million, five hundred ninety-one thousand, three hundred ninety-three".