333221440 has 28 divisors (see below), whose sum is σ = 793484316. Its totient is φ = 133288448.

The previous prime is 333221419. The next prime is 333221443. The reversal of 333221440 is 44122333.

It is a happy number.

333221440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 57395776 + 275825664 = 7576^2 + 16608^2 .

It is a super-3 number, since 3×333221440³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (333221443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520339 + ... + 520978.

Almost surely, 2^333221440 is an apocalyptic number.

It is an amenable number.

333221440 is an abundant number, since it is smaller than the sum of its proper divisors (460262876).

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

333221440 is a wasteful number, since it uses less digits than its factorization.

333221440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041334 (or 1041324 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 333221440 is about 18254.3540011691. The cubic root of 333221440 is about 693.2836831639.

Adding to 333221440 its reverse (44122333), we get a palindrome (377343773).

The spelling of 333221440 in words is "three hundred thirty-three million, two hundred twenty-one thousand, four hundred forty".