338389 has 2 divisors, whose sum is σ = 338390. Its totient is φ = 338388.

The previous prime is 338383. The next prime is 338407. The reversal of 338389 is 983833.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 321489 + 16900 = 567^2 + 130^2 .

It is a cyclic number.

It is not a de Polignac number, because 338389 - 2¹⁵ = 305621 is a prime.

It is a super-2 number, since 2×338389² = 229014230642, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169194 + 169195.

It is an arithmetic number, because the mean of its divisors is an integer number (169195).

2³³⁸³⁸⁹ is an apocalyptic number.

It is an amenable number.

338389 is a deficient number, since it is larger than the sum of its proper divisors (1).

338389 is an equidigital number, since it uses as much as digits as its factorization.

338389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 338389 is about 581.7121281184. The cubic root of 338389 is about 69.6849103517.

It can be divided in two parts, 338 and 389, that added together give a palindrome (727).

The spelling of 338389 in words is "three hundred thirty-eight thousand, three hundred eighty-nine".