338523389 has 4 divisors (see below), whose sum is σ = 338739360. Its totient is φ = 338307420.

The previous prime is 338523331. The next prime is 338523403. The reversal of 338523389 is 983325833.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 983325833 = 7 ⋅140475119.

It is a cyclic number.

It is not a de Polignac number, because 338523389 - 2¹⁶ = 338457853 is a prime.

It is a super-2 number, since 2×338523389² = 229196169800090642, 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 (338583389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105617 + ... + 108774.

It is an arithmetic number, because the mean of its divisors is an integer number (84684840).

Almost surely, 2^338523389 is an apocalyptic number.

It is an amenable number.

338523389 is a deficient number, since it is larger than the sum of its proper divisors (215971).

338523389 is a wasteful number, since it uses less digits than its factorization.

338523389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215970.

The product of its digits is 466560, while the sum is 44.

The square root of 338523389 is about 18399.0051089726. The cubic root of 338523389 is about 696.9413410108.

The spelling of 338523389 in words is "three hundred thirty-eight million, five hundred twenty-three thousand, three hundred eighty-nine".