338835389 has 4 divisors (see below), whose sum is σ = 338873340. Its totient is φ = 338797440.

The previous prime is 338835383. The next prime is 338835403. The reversal of 338835389 is 983538833.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 147428164 + 191407225 = 12142^2 + 13835^2 .

It is a cyclic number.

It is not a de Polignac number, because 338835389 - 2¹⁶ = 338769853 is a prime.

It is a super-2 number, since 2×338835389² = 229618841677562642, 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 (338835383) 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, 2579 + ... + 26159.

It is an arithmetic number, because the mean of its divisors is an integer number (84718335).

Almost surely, 2^338835389 is an apocalyptic number.

It is an amenable number.

338835389 is a deficient number, since it is larger than the sum of its proper divisors (37951).

338835389 is a wasteful number, since it uses less digits than its factorization.

338835389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37950.

The product of its digits is 1866240, while the sum is 50.

The square root of 338835389 is about 18407.4818755853. The cubic root of 338835389 is about 697.1553872054.

The spelling of 338835389 in words is "three hundred thirty-eight million, eight hundred thirty-five thousand, three hundred eighty-nine".