338046389 has 4 divisors (see below), whose sum is σ = 338247756. Its totient is φ = 337845024.

The previous prime is 338046307. The next prime is 338046391. The reversal of 338046389 is 983640833.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147136900 + 190909489 = 12130^2 + 13817^2 .

It is a cyclic number.

It is not a de Polignac number, because 338046389 - 2²⁴ = 321269173 is a prime.

It is a super-2 number, since 2×338046389² = 228550722231878642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338046089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98144 + ... + 101529.

It is an arithmetic number, because the mean of its divisors is an integer number (84561939).

Almost surely, 2^338046389 is an apocalyptic number.

It is an amenable number.

338046389 is a deficient number, since it is larger than the sum of its proper divisors (201367).

338046389 is a wasteful number, since it uses less digits than its factorization.

338046389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201366.

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 338046389 is about 18386.0378820452. The cubic root of 338046389 is about 696.6138429255.

The spelling of 338046389 in words is "three hundred thirty-eight million, forty-six thousand, three hundred eighty-nine".