320013369 has 16 divisors (see below), whose sum is σ = 510563200. Its totient is φ = 196931088.

The previous prime is 320013367. The next prime is 320013377. The reversal of 320013369 is 963310023.

320013369 is a `hidden beast` number, since 320 + 0 + 1 + 336 + 9 = 666.

It is not a de Polignac number, because 320013369 - 2¹ = 320013367 is a prime.

It is a super-2 number, since 2×320013369² = 204817112677460322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320013367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455509 + ... + 456210.

It is an arithmetic number, because the mean of its divisors is an integer number (31910200).

Almost surely, 2^320013369 is an apocalyptic number.

320013369 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

320013369 is a deficient number, since it is larger than the sum of its proper divisors (190549831).

320013369 is a wasteful number, since it uses less digits than its factorization.

320013369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911741 (or 911735 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 320013369 is about 17888.9174910054. The cubic root of 320013369 is about 683.9999038165. Note that the first 4 decimals are identical.

The spelling of 320013369 in words is "three hundred twenty million, thirteen thousand, three hundred sixty-nine".