329219380 has 72 divisors (see below), whose sum is σ = 816770304. Its totient is φ = 109189440.

The previous prime is 329219369. The next prime is 329219489. The reversal of 329219380 is 83912923.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133317 + ... + 135763.

It is an arithmetic number, because the mean of its divisors is an integer number (11344032).

Almost surely, 2^329219380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 329219380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408385152).

329219380 is an abundant number, since it is smaller than the sum of its proper divisors (487550924).

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

329219380 is a wasteful number, since it uses less digits than its factorization.

329219380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525 (or 2492 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 329219380 is about 18144.4035448950. The cubic root of 329219380 is about 690.4970024250.

The spelling of 329219380 in words is "three hundred twenty-nine million, two hundred nineteen thousand, three hundred eighty".