333989440 has 84 divisors (see below), whose sum is σ = 831815964. Its totient is φ = 127722496.

The previous prime is 333989437. The next prime is 333989441. The reversal of 333989440 is 44989333.

It can be written as a sum of positive squares in 2 ways, for example, as 95101504 + 238887936 = 9752^2 + 15456^2 .

It is a super-2 number, since 2×333989440² = 223097892063027200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (333989441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168294 + ... + 170266.

It is an arithmetic number, because the mean of its divisors is an integer number (9902571).

Almost surely, 2^333989440 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 333989440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415907982).

333989440 is an abundant number, since it is smaller than the sum of its proper divisors (497826524).

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

333989440 is a wasteful number, since it uses less digits than its factorization.

333989440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036 (or 2003 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 43.

The square root of 333989440 is about 18275.3779714675. The cubic root of 333989440 is about 693.8158951557.

The spelling of 333989440 in words is "three hundred thirty-three million, nine hundred eighty-nine thousand, four hundred forty".