329448220 has 24 divisors (see below), whose sum is σ = 728254800. Its totient is φ = 124843392.

The previous prime is 329448199. The next prime is 329448221. The reversal of 329448220 is 22844923.

It is a super-2 number, since 2×329448220² = 217072259322336800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (329448221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433105 + ... + 433864.

It is an arithmetic number, because the mean of its divisors is an integer number (30343950).

Almost surely, 2^329448220 is an apocalyptic number.

It is an amenable number.

329448220 is an abundant number, since it is smaller than the sum of its proper divisors (398806580).

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

329448220 is a wasteful number, since it uses less digits than its factorization.

329448220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866997 (or 866995 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 329448220 is about 18150.7085261154. The cubic root of 329448220 is about 690.6569532522.

The spelling of 329448220 in words is "three hundred twenty-nine million, four hundred forty-eight thousand, two hundred twenty".