332431220 has 96 divisors (see below), whose sum is σ = 814302720. Its totient is φ = 112717440.

The previous prime is 332431217. The next prime is 332431241. The reversal of 332431220 is 22134233.

It is a super-2 number, since 2×332431220² = 221021032061376800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 332431192 and 332431201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279467 + ... + 280653.

It is an arithmetic number, because the mean of its divisors is an integer number (8482320).

Almost surely, 2^332431220 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 332431220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407151360).

332431220 is an abundant number, since it is smaller than the sum of its proper divisors (481871500).

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

332431220 is a wasteful number, since it uses less digits than its factorization.

332431220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293 (or 1291 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 332431220 is about 18232.6964544469. The cubic root of 332431220 is about 692.7352187870.

Adding to 332431220 its reverse (22134233), we get a palindrome (354565453).

The spelling of 332431220 in words is "three hundred thirty-two million, four hundred thirty-one thousand, two hundred twenty".