329620 has 12 divisors (see below), whose sum is σ = 692244. Its totient is φ = 131840.

The previous prime is 329617. The next prime is 329627. The reversal of 329620 is 26923.

It can be written as a sum of positive squares in 2 ways, for example, as 125316 + 204304 = 354^2 + 452^2 .

It is a junction number, because it is equal to n+sod(n) for n = 329591 and 329600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329627) 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, 8221 + ... + 8260.

It is an arithmetic number, because the mean of its divisors is an integer number (57687).

2³²⁹⁶²⁰ is an apocalyptic number.

It is an amenable number.

329620 is an abundant number, since it is smaller than the sum of its proper divisors (362624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

329620 is a wasteful number, since it uses less digits than its factorization.

329620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16490 (or 16488 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 329620 is about 574.1254218374. The cubic root of 329620 is about 69.0776972555.

It can be divided in two parts, 329 and 620, that added together give a palindrome (949).

The spelling of 329620 in words is "three hundred twenty-nine thousand, six hundred twenty".