3031340240 has 40 divisors (see below), whose sum is σ = 7055976960. Its totient is φ = 1211140736.

The previous prime is 3031340233. The next prime is 3031340293. The reversal of 3031340240 is 420431303.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49601 + ... + 92319.

It is an arithmetic number, because the mean of its divisors is an integer number (176399424).

Almost surely, 2^3031340240 is an apocalyptic number.

It is an amenable number.

3031340240 is an abundant number, since it is smaller than the sum of its proper divisors (4024636720).

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

3031340240 is a wasteful number, since it uses less digits than its factorization.

3031340240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43619 (or 43613 counting only the distinct ones).

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

The square root of 3031340240 is about 55057.6083752282. The cubic root of 3031340240 is about 1447.2544542692.

Adding to 3031340240 its reverse (420431303), we get a palindrome (3451771543).

The spelling of 3031340240 in words is "three billion, thirty-one million, three hundred forty thousand, two hundred forty".