329431212 has 108 divisors (see below), whose sum is σ = 949552968. Its totient is φ = 99792000.

The previous prime is 329431189. The next prime is 329431217. The reversal of 329431212 is 212134923.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (108).

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (329431217) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 116212 + ... + 119012.

Almost surely, 2^329431212 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 329431212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474776484).

329431212 is an abundant number, since it is smaller than the sum of its proper divisors (620121756).

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

329431212 is a wasteful number, since it uses less digits than its factorization.

329431212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842 (or 2817 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 329431212 is about 18150.2399984132. The cubic root of 329431212 is about 690.6450678280.

The spelling of 329431212 in words is "three hundred twenty-nine million, four hundred thirty-one thousand, two hundred twelve".