329681469 has 16 divisors (see below), whose sum is σ = 473715200. Its totient is φ = 202741056.

The previous prime is 329681447. The next prime is 329681477. The reversal of 329681469 is 964186923.

It is not a de Polignac number, because 329681469 - 2¹² = 329677373 is a prime.

It is a super-2 number, since 2×329681469² = 217379742003995922, 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 (339681469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104487 + ... + 107595.

It is an arithmetic number, because the mean of its divisors is an integer number (29607200).

Almost surely, 2^329681469 is an apocalyptic number.

329681469 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

329681469 is a deficient number, since it is larger than the sum of its proper divisors (144033731).

329681469 is a wasteful number, since it uses less digits than its factorization.

329681469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5844.

The product of its digits is 559872, while the sum is 48.

The square root of 329681469 is about 18157.1327306929. The cubic root of 329681469 is about 690.8199096042.

The spelling of 329681469 in words is "three hundred twenty-nine million, six hundred eighty-one thousand, four hundred sixty-nine".