3331320240 has 80 divisors (see below), whose sum is σ = 10342346976. Its totient is φ = 887040000.

The previous prime is 3331320229. The next prime is 3331320241. The reversal of 3331320240 is 420231333.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×3331320240² = 22195389082867315200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3331320241) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 158340 + ... + 178140.

Almost surely, 2^3331320240 is an apocalyptic number.

3331320240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3331320240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5171173488).

3331320240 is an abundant number, since it is smaller than the sum of its proper divisors (7011026736).

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

3331320240 is a wasteful number, since it uses less digits than its factorization.

3331320240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20518 (or 20512 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 3331320240 is about 57717.5903862938. The cubic root of 3331320240 is about 1493.5008054278.

Adding to 3331320240 its reverse (420231333), we get a palindrome (3751551573).

The spelling of 3331320240 in words is "three billion, three hundred thirty-one million, three hundred twenty thousand, two hundred forty".