331152220 has 48 divisors (see below), whose sum is σ = 816258240. Its totient is φ = 110467584.

The previous prime is 331152209. The next prime is 331152223. The reversal of 331152220 is 22251133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331152223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26785 + ... + 37144.

It is an arithmetic number, because the mean of its divisors is an integer number (17005380).

Almost surely, 2^331152220 is an apocalyptic number.

It is an amenable number.

331152220 is an abundant number, since it is smaller than the sum of its proper divisors (485106020).

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

331152220 is a wasteful number, since it uses less digits than its factorization.

331152220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63982 (or 63980 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 331152220 is about 18197.5883017503. The cubic root of 331152220 is about 691.8456642905.

The spelling of 331152220 in words is "three hundred thirty-one million, one hundred fifty-two thousand, two hundred twenty".