329690361 has 64 divisors (see below), whose sum is σ = 596606976. Its totient is φ = 156384000.

The previous prime is 329690353. The next prime is 329690377. The reversal of 329690361 is 163096923.

It is not a de Polignac number, because 329690361 - 2³ = 329690353 is a prime.

It is a super-4 number, since 4×329690361⁴ (a number of 35 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (329690321) 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 63 ways as a sum of consecutive naturals, for example, 302760 + ... + 303846.

It is an arithmetic number, because the mean of its divisors is an integer number (9321984).

Almost surely, 2^329690361 is an apocalyptic number.

It is an amenable number.

329690361 is a deficient number, since it is larger than the sum of its proper divisors (266916615).

329690361 is a wasteful number, since it uses less digits than its factorization.

329690361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 329690361 is about 18157.3775914916. The cubic root of 329690361 is about 690.8261203621.

The spelling of 329690361 in words is "three hundred twenty-nine million, six hundred ninety thousand, three hundred sixty-one".